diff --git a/pjsip-apps/src/pjsua/pjsua_app.c b/pjsip-apps/src/pjsua/pjsua_app.c
index 5e56f62..6d3739c 100644
--- a/pjsip-apps/src/pjsua/pjsua_app.c
+++ b/pjsip-apps/src/pjsua/pjsua_app.c
@@ -320,7 +320,7 @@
 {
     int c;
     int option_index;
-    enum { OPT_CONFIG_FILE, OPT_LOG_FILE, OPT_LOG_LEVEL, OPT_APP_LOG_LEVEL, 
+    enum { OPT_CONFIG_FILE=127, OPT_LOG_FILE, OPT_LOG_LEVEL, OPT_APP_LOG_LEVEL, 
 	   OPT_HELP, OPT_VERSION, OPT_NULL_AUDIO, 
 	   OPT_LOCAL_PORT, OPT_IP_ADDR, OPT_PROXY, OPT_OUTBOUND_PROXY, 
 	   OPT_REGISTRAR, OPT_REG_TIMEOUT, OPT_PUBLISH, OPT_ID, OPT_CONTACT,
@@ -879,7 +879,7 @@
 	default:
 	    PJ_LOG(1,(THIS_FILE, 
 		      "Argument \"%s\" is not valid. Use --help to see help",
-		      argv[pj_optind]));
+		      argv[pj_optind-1]));
 	    return -1;
 	}
     }