diff --git a/hw/xquartz/applewm.c b/hw/xquartz/applewm.c
index ec20534e0..2f26e61d9 100644
--- a/hw/xquartz/applewm.c
+++ b/hw/xquartz/applewm.c
@@ -437,7 +437,7 @@ ProcAppleWMSetWindowLevel(register ClientPtr client)
 				   DixReadAccess))
         return BadValue;
 
-    if (stuff->level < 0 || stuff->level >= AppleWMNumWindowLevels) {
+    if (stuff->level >= AppleWMNumWindowLevels) {
         return BadValue;
     }