diff --git a/server_utils.go b/server_utils.go
index e47bcc2..1e8a624 100644
--- a/server_utils.go
+++ b/server_utils.go
@@ -1,4 +1,4 @@
-//go:build !go1.20
+//go:build go1.20 || go1.21 || go1.22
 
 package websocket
 
diff --git a/server_utils_120.go b/server_utils_119.go
similarity index 90%
rename from server_utils_120.go
rename to server_utils_119.go
index ced1917..f1d2fc3 100644
--- a/server_utils_120.go
+++ b/server_utils_119.go
@@ -1,4 +1,4 @@
-//go:build go1.20
+//go:build !go1.20 && !go1.21 && !go1.22
 
 package websocket