diff --git a/mlx/backend/metal/kernels/steel/conv/loaders/loader_channel_n.h b/mlx/backend/metal/kernels/steel/conv/loaders/loader_channel_n.h
index b0b98d21a..2312e1ca6 100644
--- a/mlx/backend/metal/kernels/steel/conv/loaders/loader_channel_n.h
+++ b/mlx/backend/metal/kernels/steel/conv/loaders/loader_channel_n.h
@@ -83,7 +83,7 @@ struct Conv2DInputBlockLoaderSmallChannels {
   const constant MLXConvParams<2>* params;
   const constant ImplicitGemmConv2DParams* gemm_params;
 
-  short weight_hw;
+  int weight_hw;
 
   const device T* src[n_rows];
 
diff --git a/python/tests/test_conv.py b/python/tests/test_conv.py
index 9be22e01b..cef912aee 100644
--- a/python/tests/test_conv.py
+++ b/python/tests/test_conv.py
@@ -1186,6 +1186,13 @@ class TestConv(mlx_tests.MLXTestCase):
         y_hat = mx.conv2d(x, w)
         self.assertTrue(mx.allclose(y, y_hat))
 
+    def test_conv2d_large_filter_small_channels(self):
+        x = mx.random.normal(shape=(1, 181, 181, 1))
+        w = mx.random.normal(shape=(1, 182, 182, 1))
+        y = mx.conv2d(x, w, (1, 1), (1, 1), stream=mx.cpu)
+        y_hat = mx.conv2d(x, w, (1, 1), (1, 1))
+        self.assertTrue(mx.allclose(y, y_hat, rtol=1e-3, atol=1e-3))
+
 
 if __name__ == "__main__":
     mlx_tests.MLXTestRunner()