diff --git a/packages/network/connman/profile.d/connman.conf b/packages/network/connman/profile.d/connman.conf
index ec281cd8e6..c5b4f255a3 100644
--- a/packages/network/connman/profile.d/connman.conf
+++ b/packages/network/connman/profile.d/connman.conf
@@ -26,7 +26,7 @@ wait_for_inet_addr () {
   if [ "$WAIT_NETWORK" = "true" ] ; then
     progress "Wait for network"
     [ -z "$WAIT_NETWORK_TIME" ] && WAIT_NETWORK_TIME=10
-    LOOP_COUNT=$[$WAIT_NETWORK_TIME * 5]
+    LOOP_COUNT=$((WAIT_NETWORK_TIME * 5))
     for i in $(seq 1 $LOOP_COUNT) ; do
       cnt=$(ifconfig | sed -e '/inet addr:/!d' -e '/127.0.0.1/d' |wc -l)
       [ $cnt -gt 0 ] && break