diff --git a/jenkins-agent b/jenkins-agent
old mode 100644
new mode 100755
index 5a0860711..a6501cf3b
--- a/jenkins-agent
+++ b/jenkins-agent
@@ -37,7 +37,7 @@
 #                              the agent skips connecting to an HTTP(S) port for connection info.
 # * JENKINS_PROTOCOLS:         Specify the remoting protocols to attempt when instanceIdentity is provided.
 
-if [ $# -eq 1 ] && [ "${1#-}" == "$1" ] ; then
+if [ $# -eq 1 ] && [ "${1#-}" = "$1" ] ; then
 
 	# if `docker run` only has one arguments and it is not an option as `-help`, we assume user is running alternate command like `bash` to inspect the image
 	exec "$@"