diff --git a/cmd/ethsw.c b/cmd/ethsw.c
index 491cb8eac385ed8ecf44ab6a2f46ab6bf57a59f9..b600965e8ad43a4764b519e5b89b8be1714dd17b 100644
--- a/cmd/ethsw.c
+++ b/cmd/ethsw.c
@@ -915,7 +915,7 @@ static void cmd_keywords_opt_check(const struct ethsw_command_def *parsed_cmd,
 	 * check if our command's optional keywords match the optional
 	 * keywords of an available command
 	 */
-	for (i = 0; i < ARRAY_SIZE(ethsw_cmd_def); i++) {
+	for (i = 0; i < ARRAY_SIZE(cmd_opt_def); i++) {
 		keyw_opt_matched = 0;
 		cmd_keyw_p = &parsed_cmd->cmd_to_keywords[keyw_opt_matched];
 		cmd_keyw_opt_p = &cmd_opt_def[i].cmd_keyword[keyw_opt_matched];