diff --git a/tests/qemu-iotests/287 b/tests/qemu-iotests/287
index f98a4cadc1..036cc09e82 100755
--- a/tests/qemu-iotests/287
+++ b/tests/qemu-iotests/287
@@ -51,8 +51,8 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 CLUSTER_SIZE=65536
 
 # Check if we can run this test.
-if IMGOPTS='compression_type=zstd' _make_test_img 64M |
-    grep "Invalid parameter 'zstd'"; then
+output=$(_make_test_img -o 'compression_type=zstd' 64M; _cleanup_test_img)
+if echo "$output" | grep -q "Invalid parameter 'zstd'"; then
     _notrun "ZSTD is disabled"
 fi