1 files changed, 1 insertions, 0 deletions
diff --git a/gl/glx.h b/gl/glx.h
index 62d0ede9e..234abc050 100644
--- a/gl/glx.h
+++ b/gl/glx.h
@@ -168,6 +168,7 @@ typedef XID GLXDrawable;
 /* GLX 1.3 and later */
 typedef struct __GLXFBConfigRec *GLXFBConfig;
 typedef XID GLXFBConfigID;
+typedef XID GLXContextID;
 typedef XID GLXWindow;
 typedef XID GLXPbuffer;