diff --git a/lib/fixer.js b/lib/fixer.js
index 97c26b2..70be914 100644
--- a/lib/fixer.js
+++ b/lib/fixer.js
@@ -127,7 +127,7 @@ module.exports = {
           if (!data.dependencies) {
             data.dependencies = {}
           }
-          if (Object.prototype.hasOwnProperty.call(data.dependencies, bd)) {
+          if (!Object.prototype.hasOwnProperty.call(data.dependencies, bd)) {
             this.warn('nonDependencyBundleDependency', bd)
             data.dependencies[bd] = '*'
           }
diff --git a/test/dependencies.js b/test/dependencies.js
index 9d223de..cd450b6 100644
--- a/test/dependencies.js
+++ b/test/dependencies.js
@@ -29,15 +29,21 @@ tap.test('warn if bundleDependencies array contains anything else but strings',
   function warn (w) {
     warnings.push(w)
   }
-  normalize({
-    bundleDependencies: ['abc', 123, {foo: 'bar'}],
-  }, warn)
+  var pkg = {
+    dependencies: {
+      def: '^1.0.0',
+    },
+    bundleDependencies: ['abc', 'def', 123, { foo: 'bar' }],
+  }
+  normalize(pkg, warn)
 
   var wanted1 = safeFormat(warningMessages.nonStringBundleDependency, 123)
   var wanted2 = safeFormat(warningMessages.nonStringBundleDependency, {foo: 'bar'})
   var wanted3 = safeFormat(warningMessages.nonDependencyBundleDependency, 'abc')
   t.ok(~warnings.indexOf(wanted1), wanted1)
   t.ok(~warnings.indexOf(wanted2), wanted2)
-  t.notOk(~warnings.indexOf(wanted3), wanted3)
+  t.ok(~warnings.indexOf(wanted3), wanted3)
+  t.equal(pkg.dependencies.abc, '*', 'added bundled dep to dependencies with *')
+  t.equal(pkg.dependencies.def, '^1.0.0', 'left def dependency alone')
   t.end()
 })