diff --git a/src/ex_getln.c b/src/ex_getln.c
index e8056f8..6b5a824 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -4492,6 +4492,7 @@
 	} tab[] =
 	{
 	    {EXPAND_COMMANDS, get_command_name, FALSE},
+	    {EXPAND_BEHAVE, get_behave_arg, TRUE},
 #ifdef FEAT_USR_CMDS
 	    {EXPAND_USER_COMMANDS, get_user_commands, FALSE},
 	    {EXPAND_USER_CMD_FLAGS, get_user_cmd_flags, FALSE},