diff --git a/harness/scripts/mutagen.sh b/harness/scripts/mutagen.sh
index ea8a4e4..8f0ccd0 100644
--- a/harness/scripts/mutagen.sh
+++ b/harness/scripts/mutagen.sh
@@ -84,7 +84,7 @@ clean_existing_projects()
 
     local SYNC_NAME
     local SYNC_LIST
-    for SYNC_NAME in ${SYNC_NAMES[*]}; do
+    for SYNC_NAME in "${SYNC_NAMES[@]}"; do
         # List syncs based on name
         SYNC_LIST="$(mutagen sync list "$SYNC_NAME" 2> /dev/null || true)"
         # Check if there are entries left
@@ -98,7 +98,7 @@ clean_existing_projects()
     local FORWARD_LIST
     local CONTAINER_NAMES_REGEX
     CONTAINER_NAMES_REGEX="$(join_by_character "\|" "${CONTAINER_NAMES[@]}")"
-    for FORWARD_NAME in ${FORWARD_NAMES[*]}; do
+    for FORWARD_NAME in "${FORWARD_NAMES[@]}"; do
         # List forwards based on name
         FORWARD_LIST="$(mutagen forward list "$FORWARD_NAME" 2> /dev/null || true)"
         # Check if there are entries left