diff --git a/mailnews/base/resources/content/mail3PaneWindowCommands.js b/mailnews/base/resources/content/mail3PaneWindowCommands.js
index 7fb7ea6ead6..a8679828d97 100644
--- a/mailnews/base/resources/content/mail3PaneWindowCommands.js
+++ b/mailnews/base/resources/content/mail3PaneWindowCommands.js
@@ -1077,7 +1077,7 @@ function SetFocusThreadPane()
 
 function SetFocusMessagePane()
 {
-	var messagePaneFrame = GetMessagePane();
+	var messagePaneFrame = GetMessagePaneFrame();
   messagePaneFrame.focus();
 	return;
 }