diff --git a/Dockerfile b/Dockerfile
index f522d2f..4b8b91c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -122,6 +122,7 @@ WORKDIR "${JENKINS_AGENT_HOME}"
 # allow environment variables to be sourced (see `sed` command related to `PermitUserEnvironment`)
 RUN echo "PATH=${PATH}" >> ${JENKINS_AGENT_HOME}/.ssh/environment
 COPY setup-sshd /usr/local/bin/setup-sshd
+RUN chmod a+x /usr/local/bin/setup-sshd
 
 EXPOSE 22