diff --git a/funcs_set_operation.go b/funcs_set_operation.go
index 049ed53..e86c361 100644
--- a/funcs_set_operation.go
+++ b/funcs_set_operation.go
@@ -1,5 +1,3 @@
-//go:build goexperiment.rangefunc
-
 package handy
 
 import (
diff --git a/funcs_set_operation_test.go b/funcs_set_operation_test.go
index ad41987..5edd41c 100644
--- a/funcs_set_operation_test.go
+++ b/funcs_set_operation_test.go
@@ -1,5 +1,3 @@
-//go:build goexperiment.rangefunc
-
 package handy
 
 import (