diff --git a/grammar.js b/grammar.js
index 69d0a1d4..2421aa21 100644
--- a/grammar.js
+++ b/grammar.js
@@ -1216,7 +1216,7 @@ module.exports = grammar({
         $.keyword_as,
         alias($._dollar_quoted_string_start_tag, $.dollar_quote),
         $._function_body_statement,
-        optional(';'),
+        ';',
         alias($._dollar_quoted_string_end_tag, $.dollar_quote),
       ),
     ),
diff --git a/test/corpus/functions.txt b/test/corpus/functions.txt
index 52dadd8f..d83b40cc 100644
--- a/test/corpus/functions.txt
+++ b/test/corpus/functions.txt
@@ -586,7 +586,7 @@ Function details, specified after string body
 
 create or replace function public.fn()
   returns int
-  as $$select 1$$
+  as $$select 1;$$
   language sql
   volatile
   parallel restricted