diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4c68dfa
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+rebalance_db.txt
\ No newline at end of file
diff --git a/rebalance_db.txt b/rebalance_db.txt
deleted file mode 100644
index 35bb732..0000000
--- a/rebalance_db.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-/home/markus/music/Vorsingen 21.02.2020/080101-000.wav
-1
-/home/markus/music/Vorsingen 21.02.2020/Der Vogelfänger - Can.mp3
-1
-/home/markus/music/Vorsingen 21.02.2020/Bona Nox - Chor.mp3
-1
-/home/markus/music/Vorsingen 21.02.2020/Gambenkanon - Chor.mp3
-1
-/home/markus/music/Vorsingen 21.02.2020/Großer Herr - Can.mp3
-1
-/home/markus/music/Vorsingen 21.02.2020/Arie des Harlekin - Bruno.mp3
-1
-/home/markus/music/190904-004.wav
-1
-/home/markus/music/190904-002.wav
-1
-/home/markus/music/190904-003.wav
-1
-/home/markus/music/190904-002_edited.mp3
-1
diff --git a/zfs-inplace-rebalancing.sh b/zfs-inplace-rebalancing.sh
index 77e9747..d2cba07 100755
--- a/zfs-inplace-rebalancing.sh
+++ b/zfs-inplace-rebalancing.sh
@@ -125,7 +125,7 @@ function rebalance () {
     # update rebalance "database"
     touch "./${rebalance_db_file_name}"
     line_nr=$(grep -n "${file_path}" "./${rebalance_db_file_name}" | head -n 1 | cut -d: -f1)
-    if [ -z ${line_nr} ]; then
+    if [ -z "${line_nr}" ]; then
       rebalance_count=1
       echo "${file_path}" >> "./${rebalance_db_file_name}"
       echo "${rebalance_count}" >> "./${rebalance_db_file_name}"