diff --git a/glamor/glamor_render.c b/glamor/glamor_render.c
index f432b5f29..0f4f4c0af 100644
--- a/glamor/glamor_render.c
+++ b/glamor/glamor_render.c
@@ -406,6 +406,9 @@ glamor_composite_with_copy(CARD8 op,
 {
     RegionRec region;
 
+    if (!source->pDrawable)
+	return FALSE;
+
     if (!compatible_formats(op, dest, source))
 	return FALSE;