diff --git a/mozilla/editor/base/nsEditorShell.cpp b/mozilla/editor/base/nsEditorShell.cpp
index 3e6b55ddcb0..ec992b1a24c 100644
--- a/mozilla/editor/base/nsEditorShell.cpp
+++ b/mozilla/editor/base/nsEditorShell.cpp
@@ -274,7 +274,7 @@ nsEditorShell::Init()
   return NS_OK;
 }
 
-NS_IMETHODIMP    
+nsresult    
 nsEditorShell::PrepareDocumentForEditing(nsIDocumentLoader* aLoader, nsIURI *aUrl)
 {
   if (!mContentAreaWebShell)
diff --git a/mozilla/editor/composer/src/nsEditorShell.cpp b/mozilla/editor/composer/src/nsEditorShell.cpp
index 3e6b55ddcb0..ec992b1a24c 100644
--- a/mozilla/editor/composer/src/nsEditorShell.cpp
+++ b/mozilla/editor/composer/src/nsEditorShell.cpp
@@ -274,7 +274,7 @@ nsEditorShell::Init()
   return NS_OK;
 }
 
-NS_IMETHODIMP    
+nsresult    
 nsEditorShell::PrepareDocumentForEditing(nsIDocumentLoader* aLoader, nsIURI *aUrl)
 {
   if (!mContentAreaWebShell)