diff --git a/p2p/transport/tcp/metrics_unix_test.go b/p2p/transport/tcp/metrics_unix_test.go
index 0a09526206..fa07217585 100644
--- a/p2p/transport/tcp/metrics_unix_test.go
+++ b/p2p/transport/tcp/metrics_unix_test.go
@@ -1,4 +1,4 @@
-// go:build: unix
+//go:build: unix
 
 package tcp