diff --git a/main.go b/main.go
index 994f7a0c9..26cff9422 100644
--- a/main.go
+++ b/main.go
@@ -91,7 +91,7 @@ func init() {
 }
 
 func main() {
-	flag.CommandLine.Usage = usageWithIgnoredFlagsFunc(flag.CommandLine, deprecated)
+	flag.Usage = usageWithIgnoredFlagsFunc(flag.CommandLine, deprecated)
 	flag.Parse()
 
 	setFlagsFromEnv()