diff --git a/testing.sh b/testing.sh
index 614b415..e8aed88 100755
--- a/testing.sh
+++ b/testing.sh
@@ -67,7 +67,7 @@ function assertions() {
 }
 
 function assert_matching_file_hardlinked() {
-  if ! [ $(stat -c "%i" "$1") -eq $(stat -c "%i" "$2") ]; then
+  if ! [ "$(stat -c "%i" "$1")" -eq "$(stat -c "%i" "$2")" ]; then
     echo "File '$1' was not hardlinked to '$2' when it should have been!"
     exit 1
   fi
diff --git a/zfs-inplace-rebalancing.sh b/zfs-inplace-rebalancing.sh
index 1018f9b..903cfbc 100755
--- a/zfs-inplace-rebalancing.sh
+++ b/zfs-inplace-rebalancing.sh
@@ -335,7 +335,6 @@ if [ "${passes_flag}" -ge 1 ]; then
     touch "./${rebalance_db_file_name}"
 fi
 
-key=""
 paths=()
 
 # Read grouped_inodes.txt line by line
@@ -350,7 +349,6 @@ while IFS= read -r line; do
             # Process the previous group
             process_inode_group "${paths[@]}"
         fi
-        key="$line"
         paths=()
     fi
 done < grouped_inodes.txt