diff --git a/indra/newview/llwindowlistener.cpp b/indra/newview/llwindowlistener.cpp
index 84126b7738..8d794e5380 100644
--- a/indra/newview/llwindowlistener.cpp
+++ b/indra/newview/llwindowlistener.cpp
@@ -24,6 +24,7 @@
  * $/LicenseInfo$
  */
 
+#include "llviewerprecompiledheaders.h"
 #include "linden_common.h"
 
 #include "llwindowlistener.h"