--- xnu/xnu-10002.1.13/tests/priority_queue.cpp
+++ xnu/xnu-10063.121.3/tests/priority_queue.cpp
@@ -252,7 +252,7 @@
 		if (c1.stamp != c2.stamp) {
 		        if (c1.modifier) {
 		                /* younger is better */
-		                return c1.stamp < c1.stamp ? 1 : -1;
+		                return c1.stamp < c2.stamp ? 1 : -1;
 			} else {
 		                /* older is better */
 		                return c1.stamp > c2.stamp ? 1 : -1;