diff --git a/ps-grammar/demos/listen.jsgf b/ps-grammar/demos/listen.jsgf
index 0f8a58b9b3eaec3255eeccaa115d785b1406684a..43659ecdad08b0bd4944a5d085b8deff71ca32b1 100644
--- a/ps-grammar/demos/listen.jsgf
+++ b/ps-grammar/demos/listen.jsgf
@@ -5,7 +5,7 @@ public <command> = [tobi] ( <goto> | <fetch> );
 
 <goto> = (go to <location>);
 
-<fetch> = (bring me <objects>)
+<fetch> = (bring me <objects>);
 
 <location> = (table <numberOfTable>) | shelf | drinks | snacks;
 <numberOfTable> = (one | two | three | four | five | six | seven | eight | nine);