diff --git a/install.sh b/install.sh
index 4dc06fc..8f30d20 100644
--- a/install.sh
+++ b/install.sh
@@ -94,8 +94,8 @@ fi
 
 rm -rf $MOUNT
 
-mv -f $BOOT "$IMG"/boot.img
-mv -f $SYSTEM "$IMG"/system.img
+mv -f "$BOOT" "$IMG"/boot.img
+mv -f "$SYSTEM" "$IMG"/system.img
 
 rm -rf $TMP
 
diff --git a/serial/serial.sh b/serial/serial.sh
index 0fa7885..29ca3f2 100644
--- a/serial/serial.sh
+++ b/serial/serial.sh
@@ -2,6 +2,6 @@
 
 permanent="DSM"
 serialstart="2000"
-serialnum="$(echo "$serialstart" | tr ' ' '\n' | sort -R | tail -1)"$permanent""$(printf "%06d" $((RANDOM % 30000 + 1)))
+serialnum="$(echo "$serialstart" | tr ' ' '\n' | sort -R | tail -1)$permanent"$(printf "%06d" $((RANDOM % 30000 + 1)))
 
-echo $serialnum
+echo "$serialnum"