diff --git a/cogl/cogl-debug.c b/cogl/cogl-debug.c
index 74432228b..2724e63b6 100644
--- a/cogl/cogl-debug.c
+++ b/cogl/cogl-debug.c
@@ -55,7 +55,8 @@ static const GDebugKey cogl_log_debug_keys[] = {
   { "offscreen", COGL_DEBUG_OFFSCREEN },
   { "texture-pixmap", COGL_DEBUG_TEXTURE_PIXMAP },
   { "bitmap", COGL_DEBUG_BITMAP },
-  { "clipping", COGL_DEBUG_CLIPPING }
+  { "clipping", COGL_DEBUG_CLIPPING },
+  { "winsys", COGL_DEBUG_WINSYS }
 };
 static const int n_cogl_log_debug_keys =
   G_N_ELEMENTS (cogl_log_debug_keys);