diff --git a/res/DEBIAN/prerm b/res/DEBIAN/prerm
index 6d5026991..c7177e250 100755
--- a/res/DEBIAN/prerm
+++ b/res/DEBIAN/prerm
@@ -14,14 +14,17 @@ case $1 in
 			rm /etc/systemd/system/rustdesk.service /usr/lib/systemd/system/rustdesk.service || true
 			
 			# workaround temp dev build between 1.1.9 and 1.2.0
-			serverUser=$(ps -ef | grep -E 'rustdesk +--server' | awk '{print $1}' | head -1)
 			ubuntuVersion=$(grep -oP 'VERSION_ID="\K[\d]+' /etc/os-release | bc -l)
 			waylandSupportVersion=21
-			if [ "$serverUser" != "" ] && [ "$serverUser" != "root" ] && [ "$ubuntuVersion" -ge "$waylandSupportVersion" ]
+			if [ "$ubuntuVersion" != "" ] && [ "$ubuntuVersion" -ge "$waylandSupportVersion" ]
 			then
-				systemctl --machine=${serverUser}@.host --user stop rustdesk || true
-			fi	
-			rm /usr/lib/systemd/user/rustdesk.service >/dev/null 2>/dev/null || true
+				serverUser=$(ps -ef | grep -E 'rustdesk +--server' | grep -v 'sudo ' | awk '{print $1}' | head -1)
+				if [ "$serverUser" != "" ] && [ "$serverUser" != "root" ]
+				then
+					systemctl --machine=${serverUser}@.host --user stop rustdesk >/dev/null 2>&1 || true
+				fi
+			fi
+			rm /usr/lib/systemd/user/rustdesk.service >/dev/null 2>&1 || true
 		fi
         ;;
 esac