diff --git a/tests/fov_watcher_test.py b/tests/fov_watcher_test.py
index ce671a98..925f4a3f 100644
--- a/tests/fov_watcher_test.py
+++ b/tests/fov_watcher_test.py
@@ -168,7 +168,7 @@ def test_watcher(
             if existing_data:
                 os.makedirs(os.path.join(tiff_out_dir, "fov-2-scan-1"))
                 for channel in TEST_CHANNELS:
-                    random_img = np.random.rand(512, 512)
+                    random_img = np.random.rand(32, 32)
                     imsave(
                         os.path.join(tiff_out_dir, "fov-2-scan-1", f"{channel}.tiff"), random_img
                     )