diff --git a/monai/transforms/spatial/array.py b/monai/transforms/spatial/array.py
index f334e8b35d..88887a24c8 100644
--- a/monai/transforms/spatial/array.py
+++ b/monai/transforms/spatial/array.py
@@ -3440,7 +3440,7 @@ def randomize(self, array):
 
     def filter_count(self, image_np: NdarrayOrTensor, locations: np.ndarray) -> tuple[NdarrayOrTensor, np.ndarray]:
         if self.sort_fn == GridPatchSort.RANDOM:
-            idx = self.R.permutation(tuple(range(image_np.shape[0]))))
+            idx = self.R.permutation(tuple(range(image_np.shape[0])))
             idx = idx[: self.num_patches]
             idx_np = convert_data_type(idx, np.ndarray)[0]
             return image_np[idx], locations[idx_np]