diff --git a/pbx.c b/pbx.c
index 11f2dea45345702514296e2671a6f405b0fedc59..02acc3ded447395ef05ad629f10fbbcb0985b9ec 100755
--- a/pbx.c
+++ b/pbx.c
@@ -2589,7 +2589,7 @@ static int handle_show_dialplan(int fd, int argc, char *argv[])
 			exten   = strsep(&splitter, "@");
 			context = splitter;
 
-			/* check for length and change to NULL if !strlen() */
+			/* check for length and change to NULL if ast_strlen_zero() */
 			if (ast_strlen_zero(exten))   exten = NULL;
 			if (ast_strlen_zero(context)) context = NULL;
 		} else