diff --git a/grammar.ebnf b/grammar.ebnf
index 2b5ae47e900c70ed7d75d0d6ac5ee64fb6835468..4c09057a1e846720872ef3de34d43e0ef3aeb60a 100644
--- a/grammar.ebnf
+++ b/grammar.ebnf
@@ -48,4 +48,7 @@ Conjunction ::= ("and" | "or" | "but")
 Adjective ::=
 
 /* Adverb: */
-Adverb ::=
\ No newline at end of file
+Adverb ::=
+
+/* Punctuation */
+Punctuation ::=
\ No newline at end of file