diff --git a/mozilla/embedding/tests/winEmbed/winEmbed.rc b/mozilla/embedding/tests/winEmbed/winEmbed.rc
index 554190f5a21..57fc011d42a 100644
--- a/mozilla/embedding/tests/winEmbed/winEmbed.rc
+++ b/mozilla/embedding/tests/winEmbed/winEmbed.rc
@@ -164,8 +164,8 @@ BEGIN
     PUSHBUTTON      "Reload",IDC_RELOAD,57,1,28,13
     PUSHBUTTON      "Stop",IDC_STOP,86,1,25,13
     LTEXT           "Address:",IDC_STATIC,115,3,28,8
-    COMBOBOX        IDC_ADDRESS,145,1,193,52,CBS_DROPDOWN | WS_VSCROLL | 
-                    WS_TABSTOP
+    COMBOBOX        IDC_ADDRESS,145,1,193,52,CBS_DROPDOWN | CBS_AUTOHSCROLL | 
+                    WS_VSCROLL | WS_TABSTOP
     DEFPUSHBUTTON   "Go",IDC_GO,340,1,25,13
     CONTROL         "Embedded Browser",IDC_BROWSER,"WINEMBED",WS_TABSTOP,0,
                     16,400,192