diff --git a/src/mesa/main/occlude.c b/src/mesa/main/occlude.c
index d93380227e5..53981d67c39 100644
--- a/src/mesa/main/occlude.c
+++ b/src/mesa/main/occlude.c
@@ -64,7 +64,7 @@ delete_query_object(struct gl_query_object *q)
 }
 
 
-struct gl_query_object *
+static struct gl_query_object *
 lookup_query_object(GLcontext *ctx, GLuint id)
 {
    return (struct gl_query_object *)