diff --git a/package.json b/package.json
index 8fd7899..b447ee8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "apib2swagger",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Convert API Blueprint to Swagger.",
   "bin": "./bin/apib2swagger.js",
   "scripts": {
diff --git a/src/escape_json_pointer.js b/src/escape_json_pointer.js
index a28c26b..0556e77 100644
--- a/src/escape_json_pointer.js
+++ b/src/escape_json_pointer.js
@@ -1,7 +1,7 @@
-// RFC 6901
-function escapeJSONPointer(input) {
-    s = input.replace(/~/g, '~0')
-    return s.replace(/\//g, '~1')
-}
-
-module.exports = escapeJSONPointer;
+// RFC 6901
+function escapeJSONPointer(input) {
+    s = input.replace(/~/g, '~0')
+    return s.replace(/\//g, '~1')
+}
+
+module.exports = escapeJSONPointer;
diff --git a/src/mson_to_json_schema.js b/src/mson_to_json_schema.js
index f6788e8..6d7da19 100644
--- a/src/mson_to_json_schema.js
+++ b/src/mson_to_json_schema.js
@@ -1,93 +1,93 @@
-var escapeJSONPointer = require('./escape_json_pointer');
-
-function convertMsonToJsonSchema(content) {
-    // for apib._version = "4.0"
-    var mson = content.content[0];
-    if (mson.element === 'array') {
-        if (!mson.content || mson.content.length === 0) {
-            return {type: 'array', items: {}};
-        } else if (mson.content.length === 1) {
-            return {type: 'array', items: {'$ref': '#/definitions/' + escapeJSONPointer(mson.content[0].element)}};
-        } else if (mson.content.length > 1) {
-            var items = [];
-            for (var i = 0; i < mson.content.length; i++) {
-                items.push({'$ref': '#/definitions/' + escapeJSONPointer(mson.content[i].element)});
-            }
-            return {type: 'array', items: {'anyOf': items}};
-        }
-    }
-    if (mson.element === 'enum') {
-        return convertEnum(mson.content);
-    }
-    if (mson.element !== 'object' && !mson.content) {
-        return {'$ref': '#/definitions/' + escapeJSONPointer(mson.element)};
-    }
-    // object
-    var schema = {};
-    schema.type = 'object';
-    schema.required = [];
-    schema.properties = {};
-    for (var j = 0; j < mson.content.length; j++) {
-        var member = mson.content[j];
-        if (member.element !== "member") continue;
-        // MEMO: member.meta.description
-        if (member.content.value.element === 'array') {
-            // TODO: use member.content.value.content (schema for items)
-            schema.properties[member.content.key.content] = {type: 'array', items: {}};
-        } else if (member.content.value.element === 'enum') {
-            var body = {type: member.content.key.element};
-            body.enum = member.content.value.content.map(function(a) {
-              return a.content;
-            });
-            schema.properties[member.content.key.content] = body;
-        } else {
-            schema.properties[member.content.key.content] = {type: member.content.value.element};
-        }
-        if (!member.attributes || !member.attributes.typeAttributes) continue;
-        for (var k = 0; k < member.attributes.typeAttributes.length; k++) {
-            if (member.attributes.typeAttributes[k] === "fixedType") {
-                // handle when we have attributes containing objects
-                if (member.content.value.element === 'array'){
-                    schema.properties[member.content.key.content] = {
-                        'type': "array",
-                        'items': {
-                            '$ref': '#/definitions/' + escapeJSONPointer(member.content.value.content[0].element)
-                        }
-                    };
-                } else {
-                    schema.properties[member.content.key.content] = {'$ref': '#/definitions/' + escapeJSONPointer(member.content.value.element)};
-                }
-            }
-            if (member.attributes.typeAttributes[k] === "required") {
-                schema.required.push(member.content.key.content);
-            }
-        }
-    }
-
-    // According to schema definition, required is a stringArray, which must be non-empty
-    if (schema.required.length === 0) {
-        delete schema.required
-    }
-
-    if (mson.element !== 'object') {
-        return {'allOf': [{'$ref':'#/definitions/' + escapeJSONPointer(mson.element)}, schema]};
-    }
-
-    return schema;
-}
-
-function convertEnum(contents) {
-    var schema = {type: '', enum: []};
-    for (var i = 0; i < contents.length; i++) {
-        var content = contents[i];
-        if (!schema.type) {
-            schema.type = content.element;
-        } else if (schema.type != content.element) {
-            // WARN!! mixed type enum
-        }
-        schema.enum.push(content.content);
-    }
-    return schema;
-}
-
+var escapeJSONPointer = require('./escape_json_pointer');
+
+function convertMsonToJsonSchema(content) {
+    // for apib._version = "4.0"
+    var mson = content.content[0];
+    if (mson.element === 'array') {
+        if (!mson.content || mson.content.length === 0) {
+            return {type: 'array', items: {}};
+        } else if (mson.content.length === 1) {
+            return {type: 'array', items: {'$ref': '#/definitions/' + escapeJSONPointer(mson.content[0].element)}};
+        } else if (mson.content.length > 1) {
+            var items = [];
+            for (var i = 0; i < mson.content.length; i++) {
+                items.push({'$ref': '#/definitions/' + escapeJSONPointer(mson.content[i].element)});
+            }
+            return {type: 'array', items: {'anyOf': items}};
+        }
+    }
+    if (mson.element === 'enum') {
+        return convertEnum(mson.content);
+    }
+    if (mson.element !== 'object' && !mson.content) {
+        return {'$ref': '#/definitions/' + escapeJSONPointer(mson.element)};
+    }
+    // object
+    var schema = {};
+    schema.type = 'object';
+    schema.required = [];
+    schema.properties = {};
+    for (var j = 0; mson.content && j < mson.content.length; j++) {
+        var member = mson.content[j];
+        if (member.element !== "member") continue;
+        // MEMO: member.meta.description
+        if (member.content.value.element === 'array') {
+            // TODO: use member.content.value.content (schema for items)
+            schema.properties[member.content.key.content] = {type: 'array', items: {}};
+        } else if (member.content.value.element === 'enum') {
+            var body = {type: member.content.key.element};
+            body.enum = member.content.value.content.map(function(a) {
+              return a.content;
+            });
+            schema.properties[member.content.key.content] = body;
+        } else {
+            schema.properties[member.content.key.content] = {type: member.content.value.element};
+        }
+        if (!member.attributes || !member.attributes.typeAttributes) continue;
+        for (var k = 0; k < member.attributes.typeAttributes.length; k++) {
+            if (member.attributes.typeAttributes[k] === "fixedType") {
+                // handle when we have attributes containing objects
+                if (member.content.value.element === 'array'){
+                    schema.properties[member.content.key.content] = {
+                        'type': "array",
+                        'items': {
+                            '$ref': '#/definitions/' + escapeJSONPointer(member.content.value.content[0].element)
+                        }
+                    };
+                } else {
+                    schema.properties[member.content.key.content] = {'$ref': '#/definitions/' + escapeJSONPointer(member.content.value.element)};
+                }
+            }
+            if (member.attributes.typeAttributes[k] === "required") {
+                schema.required.push(member.content.key.content);
+            }
+        }
+    }
+
+    // According to schema definition, required is a stringArray, which must be non-empty
+    if (schema.required.length === 0) {
+        delete schema.required
+    }
+
+    if (mson.element !== 'object') {
+        return {'allOf': [{'$ref':'#/definitions/' + escapeJSONPointer(mson.element)}, schema]};
+    }
+
+    return schema;
+}
+
+function convertEnum(contents) {
+    var schema = {type: '', enum: []};
+    for (var i = 0; i < contents.length; i++) {
+        var content = contents[i];
+        if (!schema.type) {
+            schema.type = content.element;
+        } else if (schema.type != content.element) {
+            // WARN!! mixed type enum
+        }
+        schema.enum.push(content.content);
+    }
+    return schema;
+}
+
 module.exports = convertMsonToJsonSchema;
\ No newline at end of file
diff --git a/test/input/Issue-#35.md b/test/input/Issue-#35.md
new file mode 100644
index 0000000..ec749af
--- /dev/null
+++ b/test/input/Issue-#35.md
@@ -0,0 +1,8 @@
+FORMAT: 1A
+
+# Data Structures
+
+# some category of data structures
+## Config
++ alice (string, required) - information about alice
++ bob (string, required) - information about bob
diff --git a/test/output/Issue-#35.json b/test/output/Issue-#35.json
new file mode 100644
index 0000000..d1071e6
--- /dev/null
+++ b/test/output/Issue-#35.json
@@ -0,0 +1,31 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "",
+    "version": "",
+    "description": ""
+  },
+  "paths": {},
+  "definitions": {
+    "some category of data structures": {
+      "type": "object",
+      "properties": {}
+    },
+    "Config": {
+      "type": "object",
+      "required": [
+        "alice",
+        "bob"
+      ],
+      "properties": {
+        "alice": {
+          "type": "string"
+        },
+        "bob": {
+          "type": "string"
+        }
+      }
+    }
+  },
+  "tags": []
+}
\ No newline at end of file
diff --git a/test/test.js b/test/test.js
index bc6bb7f..c030cb0 100644
--- a/test/test.js
+++ b/test/test.js
@@ -32,6 +32,7 @@ var remote = 'https://raw.githubusercontent.com/apiaryio/api-blueprint/format-1A
         'Issue-#26.md',
         'Issue-#29.md',
         'Issue-#33.md',
+        'Issue-#35.md',
         'apiblueprint_uber.md',
         'apiblueprint_valid_simple.md'
     ];