diff --git a/scripts/install/openim-crontask.sh b/scripts/install/openim-crontask.sh
index b8d57fed1..191701082 100755
--- a/scripts/install/openim-crontask.sh
+++ b/scripts/install/openim-crontask.sh
@@ -52,7 +52,7 @@ function openim::crontask::start() {
 
   openim::log::status "start cron_task process, path: ${OPENIM_CRONTASK_BINARY}"
   #nohup ${OPENIM_CRONTASK_BINARY} -c ${OPENIM_PUSH_CONFIG} >> ${LOG_FILE} 2> >(tee -a "${STDERR_LOG_FILE}" "$TMP_LOG_FILE" >&2) &
-  cmd= "${OPENIM_CRONTASK_BINARY} -c ${OPENIM_PUSH_CONFIG}"
+  cmd="${OPENIM_CRONTASK_BINARY} -c ${OPENIM_PUSH_CONFIG}"
   nohup ${cmd} >> "${LOG_FILE}" 2> >(tee -a  "$TMP_LOG_FILE" | while read line; do echo -e "\e[31m${line}\e[0m"; done >&2) >/dev/null &
   return 0