diff --git a/keyserver/bash/scp-backup.sh b/keyserver/bash/scp-backup.sh
index 3c68b2223..f9ecf4fe0 100755
--- a/keyserver/bash/scp-backup.sh
+++ b/keyserver/bash/scp-backup.sh
@@ -1,49 +1,49 @@
 #!/usr/bin/env bash
 
 set -e
 
 # Use like scp: bash/scp-backup.sh server:backup_src/ backup_dest/
 # - Will scp the latest backup from backup_src/
 # - Will make sure disk usage doesn't exceed $MAX_DISK_USAGE_KB in backup_dest/
 
 # The maximum amount of space to spend on backups
 MAX_DISK_USAGE_KB=5242880 # 5 GiB
 
 SCP_SOURCE=$1
 SCP_DEST_FOLDER=$2
 
 SCP_SOURCE_SERVER=$(cut -d: -f1 <<< "$SCP_SOURCE")
 SCP_SOURCE_FOLDER=$(cut -d: -f2 <<< "$SCP_SOURCE")
-NEWEST_BACKUP=$(ssh "$SCP_SOURCE_SERVER" 'find "'$SCP_SOURCE_FOLDER'" -maxdepth 1 -name "comm.*.sql.gz" -type f -printf "%T+ %p\n" | sort | tail -n 1 | cut -d " " -f2')
+NEWEST_BACKUP=$(ssh "$SCP_SOURCE_SERVER" 'find "'"$SCP_SOURCE_FOLDER"'" -maxdepth 1 -name "comm.*.sql.gz" -type f -printf "%T+ %p\n" | sort | tail -n 1 | cut -d " " -f2')
 
 function remove_oldest_backup {
   OLDEST_BACKUP=$(find "$SCP_DEST_FOLDER" -maxdepth 1 -name 'comm.*.sql.gz' -type f -printf "%T+ %p\n" | sort | head -n 1 | cut -d ' ' -f2- | cut -d '' -f1)
   if [[ ! "$OLDEST_BACKUP" ]]; then
     return 1
   fi
   rm -f "$OLDEST_BACKUP"
   return 0
 }
 
 RETRIES=2
 while [[ $RETRIES -ge 0 ]]; do
   if scp "$SCP_SOURCE_SERVER":"$NEWEST_BACKUP" "$SCP_DEST_FOLDER"; then
     break
   fi
   rm -f "$SCP_DEST_FOLDER"/"$NEWEST_BACKUP"
 
   remove_oldest_backup || break
   ((RETRIES--))
 done
 
 while true; do
   TOTAL_USAGE=$(sudo du -cs "$SCP_DEST_FOLDER"/comm.*.sql.gz | awk '/total/ { print $1 }')
   if [[ $TOTAL_USAGE -le $MAX_DISK_USAGE_KB ]]; then
     break
   fi
   BACKUP_COUNT=$(find "$SCP_DEST_FOLDER" -maxdepth 1 -name "comm.*.sql.gz" -type f | wc -l)
   if [[ $BACKUP_COUNT -lt 2 ]]; then
     break
   fi
   remove_oldest_backup || break
 done