diff --git a/ps-grammar/navigationTask/navigationTask.jsgf b/ps-grammar/navigationTask/navigationTask.jsgf
index 65b240d429c636d9da1b1ebdcd505bbc55f48788..bf8faab325ea335de12d72e22216ca7f4dd4b009 100644
--- a/ps-grammar/navigationTask/navigationTask.jsgf
+++ b/ps-grammar/navigationTask/navigationTask.jsgf
@@ -1,5 +1,5 @@
 #JSGF V1.0;
 grammar navigationTask;
 
-public <navigation> = [tobi] [please] (<stop>);
+public <navigation> = tobi [please] (<stop>);
 <stop> = stop [this];