diff --git a/dom/plugins/base/nsNPAPIPluginInstance.cpp b/dom/plugins/base/nsNPAPIPluginInstance.cpp
index f40f8983e15a..44ca1a9a8a8c 100644
--- a/dom/plugins/base/nsNPAPIPluginInstance.cpp
+++ b/dom/plugins/base/nsNPAPIPluginInstance.cpp
@@ -562,7 +562,7 @@ nsresult nsNPAPIPluginInstance::SetWindow(NPWindow* window)
   if (!window || RUNNING != mRunning)
     return NS_OK;
 
-#if (MOZ_WIDGET_GTK == 2)
+#if MOZ_WIDGET_GTK
   // bug 108347, flash plugin on linux doesn't like window->width <=
   // 0, but Java needs wants this call.
   if (!nsPluginHost::IsJavaMIMEType(mMIMEType) && window->type == NPWindowTypeWindow &&