diff --git a/backup.sh b/backup.sh
index 23b66f0..4ab434b 100755
--- a/backup.sh
+++ b/backup.sh
@@ -45,7 +45,7 @@ run_send_recv()
 {
     ssh_cmd="ssh $SSH_SEND_OPTS -o port=$port $user@$addr"
     pv_cmd="pv -qL ${speed:-$DEFAULT_SPEED}"
-    if ["$ZB_TEST_MODE" = "TRUE" ]; then
+    if [ "$ZB_TEST_MODE" = "TRUE" ]; then
         echo "$send_cmd | $pv_cmd | $ssh_cmd $recv_cmd"
     else
         $send_cmd | $pv_cmd | $ssh_cmd $recv_cmd