diff --git a/scripts/lib/util.sh b/scripts/lib/util.sh
index f3cffd7c0..a5d33cb9b 100755
--- a/scripts/lib/util.sh
+++ b/scripts/lib/util.sh
@@ -2858,7 +2858,7 @@ function openim::util::find_process_ports() {
         local port_protocol=($line)
         local port=${port_protocol[0]##*:}
         local protocol=${port_protocol[1]}
-        protocol_ports=$protocol_ports+$protocol+" "+$ports
+        protocol_ports=$protocol_ports "" $protocol" "$port
         echo "Process $process_path is listening on port $port with protocol $protocol"
     done