diff --git a/src/glcontext_glx.h b/src/glcontext_glx.h
index 73b7db23..ff9e09e5 100644
--- a/src/glcontext_glx.h
+++ b/src/glcontext_glx.h
@@ -9,6 +9,7 @@
 #if BX_PLATFORM_LINUX
 
 #	include <X11/Xlib.h>
+#	include <GL/glx.h>
 
 namespace bgfx
 {