diff --git a/components/script/dom/webidls/NodeFilter.webidl b/components/script/dom/webidls/NodeFilter.webidl
index b84b369829e..5e213c066b6 100644
--- a/components/script/dom/webidls/NodeFilter.webidl
+++ b/components/script/dom/webidls/NodeFilter.webidl
@@ -6,7 +6,7 @@
  * The origin of this IDL file is
  * http://dom.spec.whatwg.org/#interface-nodefilter
  */
-// Import form http://hg.mozilla.org/mozilla-central/file/a5a720259d79/dom/webidl/NodeFilter.webidl
+// Import from http://hg.mozilla.org/mozilla-central/file/a5a720259d79/dom/webidl/NodeFilter.webidl
 
 callback interface NodeFilter {
   // Constants for acceptNode()