diff --git a/lib/internal/url.js b/lib/internal/url.js
index 005f5b66476752..91b0640b50e8f6 100644
--- a/lib/internal/url.js
+++ b/lib/internal/url.js
@@ -133,6 +133,13 @@ function onParseProtocolComplete(flags, protocol, username, password,
   if ((s && !newIsSpecial) || (!s && newIsSpecial)) {
     return;
   }
+  if (protocol === 'file:' &&
+    (ctx.username || ctx.password || ctx.port !== undefined)) {
+    return;
+  }
+  if (ctx.scheme === 'file:' && !ctx.host) {
+    return;
+  }
   if (newIsSpecial) {
     ctx.flags |= binding.URL_FLAGS_SPECIAL;
   } else {
diff --git a/test/fixtures/url-setter-tests.json b/test/fixtures/url-setter-tests.json
index 4876b9940c1d98..d0138204b3fe6c 100644
--- a/test/fixtures/url-setter-tests.json
+++ b/test/fixtures/url-setter-tests.json
@@ -111,6 +111,55 @@
                 "protocol": "http:"
             }
         },
+        {
+            "href": "gopher://example.net:1234",
+            "new_value": "file",
+            "expected": {
+                "href": "gopher://example.net:1234/",
+                "protocol": "gopher:"
+            }
+        },
+        {
+            "href": "wss://x:x@example.net:1234",
+            "new_value": "file",
+            "expected": {
+                "href": "wss://x:x@example.net:1234/",
+                "protocol": "wss:"
+            }
+        },
+        {
+            "comment": "Can’t switch from file URL with no host",
+            "href": "file://localhost/",
+            "new_value": "http",
+            "expected": {
+                "href": "file:///",
+                "protocol": "file:"
+            }
+        },
+        {
+            "href": "file:///test",
+            "new_value": "gopher",
+            "expected": {
+                "href": "file:///test",
+                "protocol": "file:"
+            }
+        },
+        {
+            "href": "file:",
+            "new_value": "wss",
+            "expected": {
+                "href": "file:///",
+                "protocol": "file:"
+            }
+        },
+        {
+            "href": "file://hi/path",
+            "new_value": "s",
+            "expected": {
+                "href": "file://hi/path",
+                "protocol": "file:"
+            }
+        },
         {
             "href": "https://example.net",
             "new_value": "s",
@@ -1177,4 +1226,4 @@
             }
         }
     ]
-}
\ No newline at end of file
+}