diff --git a/gfx/src/xlib/nsRenderingContextXlib.cpp b/gfx/src/xlib/nsRenderingContextXlib.cpp
index e15128d881f9..4b418f762949 100644
--- a/gfx/src/xlib/nsRenderingContextXlib.cpp
+++ b/gfx/src/xlib/nsRenderingContextXlib.cpp
@@ -33,6 +33,7 @@
 #include "xlibrgb.h"
 #include "prprf.h"
 #include "prmem.h"
+#include "prlog.h"
 #include "nsGCCache.h"
 #ifdef _IMPL_NS_XPRINT
 #include "imgIContainer.h"