diff --git a/files/fuel-umm/root/etc/profile.d/umm.sh b/files/fuel-umm/root/etc/profile.d/umm.sh
index 8491b7b58e..b4959c7325 100755
--- a/files/fuel-umm/root/etc/profile.d/umm.sh
+++ b/files/fuel-umm/root/etc/profile.d/umm.sh
@@ -1,4 +1,4 @@
-if [ "z`umm status`" == "zumm" ] ; then
+if [ "z`umm status`" = "zumm" ] ; then
     cat /etc/issue.mm
     [ "$#" != "0" ] && echo "$@"
 fi