diff --git a/template/unicode_norm_gen.tmpl b/template/unicode_norm_gen.tmpl
index f95d842865..ddd1966ca6 100644
--- a/template/unicode_norm_gen.tmpl
+++ b/template/unicode_norm_gen.tmpl
@@ -152,7 +152,7 @@ end
 
 # generate normalization tables file
 %># coding: us-ascii
-# -*- frozen_string_literal: true -*-
+# frozen_string_literal: true
 %# >
 
 # automatically generated by template/unicode_norm_gen.tmpl