diff --git a/scripts/firstrun b/scripts/firstrun
index 812245b879..b997cfb844 100644
--- a/scripts/firstrun
+++ b/scripts/firstrun
@@ -37,16 +37,16 @@ echo -e "### [firstrun] Recreated SSH keys" >>${Log}
 MEMTOTAL=$(( $(awk -F" " '/^MemTotal/ {print $2}' </proc/meminfo) / 1024 ))
 FREESIZE=\$(df -hm / | awk '/\// {print \$(NF-2)}')
 SWAPFILE=/var/swap
-if [[ ! -f "$SWAPFILE" && "\$FREESIZE" -gt "132" ]]; then
-fallocate -l 128M $SWAPFILE >/dev/null 2>&1
-if [ $? -eq 1 ]; then dd if=/dev/zero of=$SWAPFILE bs=1M count=128 status=noxfer >/dev/null 2>&1; fi
-chown root:root $SWAPFILE
-chmod 0600 $SWAPFILE
-mkswap $SWAPFILE >/dev/null 2>&1
-swapon $SWAPFILE >/dev/null 2>&1
-if ! grep -q swap /etc/fstab; then echo "$SWAPFILE none swap sw 0 0" >> /etc/fstab; fi
+if [[ ! -f "\$SWAPFILE" && "\$FREESIZE" -gt "132" ]]; then
+fallocate -l 128M \$SWAPFILE >/dev/null 2>&1
+if [ $? -eq 1 ]; then dd if=/dev/zero of=\$SWAPFILE bs=1M count=128 status=noxfer >/dev/null 2>&1; fi
+chown root:root \$SWAPFILE
+chmod 0600 \$SWAPFILE
+mkswap \$SWAPFILE >/dev/null 2>&1
+swapon \$SWAPFILE >/dev/null 2>&1
+if ! grep -q swap /etc/fstab; then echo "\$SWAPFILE none swap sw 0 0" >> /etc/fstab; fi
 if ! grep -q swap /etc/sysctl.conf; then echo "vm.swappiness=0" >> /etc/sysctl.conf; fi
-echo -e "\n### [firstrun] Created 128MB emergency swap as $SWAPFILE" >>${Log}
+echo -e "\n### [firstrun] Created 128MB emergency swap as \$SWAPFILE" >>${Log}
 fi
 # RAMLOG
 if [[ "$(apt-cache policy ramlog | grep Installed)" != "" ]]; then