--- brackets-shell/appshell/appshell_extensions_platform.h
+++ brackets-shell/appshell/appshell_extensions_platform.h
@@ -1,25 +1,25 @@
 /*
  * Copyright (c) 2012 Adobe Systems Incorporated. All rights reserved.
- *  
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"), 
- * to deal in the Software without restriction, including without limitation 
- * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
- * and/or sell copies of the Software, and to permit persons to whom the 
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
- *  
+ *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *  
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  * DEALINGS IN THE SOFTWARE.
- * 
- */ 
+ *
+ */
 
 #pragma once
 
@@ -27,6 +27,10 @@
 #include "include/cef_v8.h"
 
 #include <string>
+
+#ifdef OS_LINUX
+#include <gtk/gtk.h>
+#endif
 
 // Extension error codes. These MUST be in sync with the error
 // codes in appshell_extensions.js
@@ -73,8 +77,8 @@
     return gtk_widget_get_ancestor(
         GTK_WIDGET(browser->GetHost()->GetWindowHandle()),
         GTK_TYPE_VBOX);
+}
 inline int32 InstallCommandLineTools() { return ERR_CL_TOOLS_NOTSUPPORTED; }
-}
 #endif
 
 
@@ -154,3 +158,4 @@
 int32 GetMenuPosition(CefRefPtr<CefBrowser> browser, const ExtensionString& commandId, ExtensionString& parentId, int& index);
 
 void DragWindow(CefRefPtr<CefBrowser> browser);
+