diff --git a/tool/resources/org/antlr/v4/tool/templates/codegen/Go/Go.stg b/tool/resources/org/antlr/v4/tool/templates/codegen/Go/Go.stg
index ee2789c5e..b28e8b88f 100644
--- a/tool/resources/org/antlr/v4/tool/templates/codegen/Go/Go.stg
+++ b/tool/resources/org/antlr/v4/tool/templates/codegen/Go/Go.stg
@@ -1,5 +1,5 @@
 fileHeader(grammarFileName, ANTLRVersion) ::= <<
-// Generated from <grammarFileName; format="java-escape"> by ANTLR <ANTLRVersion>
+// Generated from <grammarFileName; format="java-escape"> by ANTLR <ANTLRVersion>.
 >>
 
 ParserFile(file, parser, namedActions) ::= <<