diff --git a/src/glx/glxconfig.h b/src/glx/glxconfig.h
index 2f1074ca5fa..10d7dbaa087 100644
--- a/src/glx/glxconfig.h
+++ b/src/glx/glxconfig.h
@@ -52,8 +52,6 @@ struct glx_config {
 
     GLint level;
 
-    GLint pixmapMode;
-
     /* GLX */
     GLint visualID;
     GLint visualType;     /**< One of the GLX X visual types. (i.e.,