diff --git a/packages/client/lib/commands/INCRBY.spec.ts b/packages/client/lib/commands/INCRBY.spec.ts
index a671d0ec25..08c84a437b 100644
--- a/packages/client/lib/commands/INCRBY.spec.ts
+++ b/packages/client/lib/commands/INCRBY.spec.ts
@@ -1,19 +1,22 @@
 import { strict as assert } from 'assert';
 import testUtils, { GLOBAL } from '../test-utils';
-import { transformArguments } from './INCRBY';
+import INCRBY from './INCRBY';
 
-describe('INCR', () => {
-    it('transformArguments', () => {
-        assert.deepEqual(
-            transformArguments('key', 1),
-            ['INCRBY', 'key', '1']
-        );
-    });
+describe('INCRBY', () => {
+  it('transformArguments', () => {
+    assert.deepEqual(
+      INCRBY.transformArguments('key', 1),
+      ['INCRBY', 'key', '1']
+    );
+  });
 
-    testUtils.testWithClient('client.incrBy', async client => {
-        assert.equal(
-            await client.incrBy('key', 1),
-            1
-        );
-    }, GLOBAL.SERVERS.OPEN);
+  testUtils.testAll('incrBy', async client => {
+    assert.equal(
+      await client.incrBy('key', 1),
+      1
+    );
+  }, {
+    client: GLOBAL.SERVERS.OPEN,
+    cluster: GLOBAL.CLUSTERS.OPEN
+  });
 });