diff --git a/config b/config
index 87f4117e..9516220c 100755
--- a/config
+++ b/config
@@ -2237,7 +2237,9 @@ elif [ "$1" = "-V" ]; then
 	echo "Changing the maxcpus setting"
 	echo
 
-	CPUS=$(cat /boot/firmware/cmdline.txt| grep -oP 'maxcpus=\K\d+')
+	CMDLINE=/boot/firmware/cmdline.txt
+
+	CPUS=$(cat $CMDLINE| grep -oP 'maxcpus=\K\d+')
 
 	if [ -z "$param2" ] ; then
 
@@ -2255,7 +2257,7 @@ elif [ "$1" = "-V" ]; then
 			sudo sed -i 's/maxcpus=$CPUS//g'
 			echo "Removing maxcpus setting"
 		elif [ $NEWCPU == "1" ] || [ $NEWCPU == "2" ] || [ $NEWCPU == "3" ] ; then 
-			sudo sed -i 's/maxcpus=$CPUS/maxcpus=$NEWCPU/g'
+			sudo sed -i 's/maxcpus=$CPUS/maxcpus=$NEWCPU/g' $CMDLINE
 			echo "Setting maxcpus="$NEWCPU	
 		else
 			echo "Invalid maxcpus setting. No change made."
@@ -2265,7 +2267,7 @@ elif [ "$1" = "-V" ]; then
 
 		if [ "$param2" == "1" ] || [ "$param2" == "2" ] || [ "$param2" == "3" ] ; then
 
-			sudo sed -i 's/maxcpus=$CPUS/maxcpus=$param2/g'
+			sudo sed -i 's/maxcpus=$CPUS/maxcpus=$param2/g' $CMDLINE
 			echo "Setting maxcpus="$param2
 
 		else