diff --git a/os/gcache/gcache_z_example_cache_test.go b/os/gcache/gcache_z_example_cache_test.go
index d28acefba..3b2a47364 100644
--- a/os/gcache/gcache_z_example_cache_test.go
+++ b/os/gcache/gcache_z_example_cache_test.go
@@ -223,7 +223,7 @@ func ExampleCache_UpdateExpire() {
 	expire1, _ := c.GetExpire(ctx, "k1")
 	fmt.Println(expire1)
 
-	// Output:
+	// May Output:
 	// 1s
 	// 500ms
 }