diff --git a/functions/fn_monitor_query b/functions/fn_monitor_query
index 33b158ac3..f56b6cf23 100644
--- a/functions/fn_monitor_query
+++ b/functions/fn_monitor_query
@@ -2,7 +2,7 @@
 # LGSM fn_monitor_query function
 # Author: Daniel Gibbs
 # Website: http://gameservermanagers.com
-# Version: 030715
+# Version: 311015
 
 # Description: uses gsquery.py to directly query the server.
 # Detects if the server has frozen.
@@ -10,15 +10,15 @@
 local modulename="Monitor"
 if [ -f "${rootdir}/gsquery.py" ]; then
 	if [ "${engine}" == "unreal" ]||[ "${engine}" == "unreal2" ]; then
-		gameport=$(grep Port= "${servercfgfullpath}"|grep -v Master|grep -v LAN|grep -v Proxy|grep -v Listen|tr -d '\r'|tr -cd [:digit:])
+		gameport=$(grep Port= "${servercfgfullpath}"|grep -v Master|grep -v LAN|grep -v Proxy|grep -v Listen|tr -d '\r'|tr -cd '[:digit:]')
 		port=$((${gameport} + 1))
 	elif [ "${engine}" == "spark" ]; then
 		port=$((${port} + 1))
 	elif [ "${engine}" == "realvirtuality" ]; then
-		queryport=$(grep -s steamqueryport= "${servercfgfullpath}"|grep -v //|tr -d '\r'|tr -cd [:digit:])
+		queryport=$(grep -s steamqueryport= "${servercfgfullpath}"|grep -v //|tr -d '\r'|tr -cd '[:digit:]')
 		port=${queryport}
 	elif [ "${engine}" == "unity3d" ]; then
-		gameport=$(grep ServerPort "${servercfgfullpath}"|tr -cd [:digit:])
+		gameport=$(grep ServerPort "${servercfgfullpath}"|tr -cd '[:digit:]')
 		port=$((${gameport} + 1))
 	fi
 	fn_printinfo "Detected gsquery.py"