diff --git a/tests/qemu-iotests/240 b/tests/qemu-iotests/240
index f73bc07d80..8b4337b58d 100755
--- a/tests/qemu-iotests/240
+++ b/tests/qemu-iotests/240
@@ -29,7 +29,7 @@ status=1	# failure is the default!
 
 _cleanup()
 {
-    rm -f "$TEST_DIR/nbd"
+    rm -f "$SOCK_DIR/nbd"
 }
 trap "_cleanup; exit \$status" 0 1 2 3 15
 
@@ -135,7 +135,7 @@ echo
 run_qemu <<EOF
 { "execute": "qmp_capabilities" }
 { "execute": "blockdev-add", "arguments": {"driver": "null-co", "read-zeroes": true, "node-name": "hd0", "read-only": true}}
-{ "execute": "nbd-server-start", "arguments": {"addr":{"type":"unix","data":{"path":"$TEST_DIR/nbd"}}}}
+{ "execute": "nbd-server-start", "arguments": {"addr":{"type":"unix","data":{"path":"$SOCK_DIR/nbd"}}}}
 { "execute": "nbd-server-add", "arguments": {"device":"hd0"}}
 { "execute": "object-add", "arguments": {"qom-type": "iothread", "id": "iothread0"}}
 { "execute": "device_add", "arguments": {"id": "scsi0", "driver": "${virtio_scsi}", "iothread": "iothread0"}}