diff --git a/fbgemm_gpu/test/quantize/fused_8bit_rowwise_test.py b/fbgemm_gpu/test/quantize/fused_8bit_rowwise_test.py
index a522880148..a2183fcd94 100644
--- a/fbgemm_gpu/test/quantize/fused_8bit_rowwise_test.py
+++ b/fbgemm_gpu/test/quantize/fused_8bit_rowwise_test.py
@@ -257,6 +257,8 @@ def test_quantize_and_dequantize_op(  # noqa: C901
                         )
                     )
 
+            # pyre-fixme[61]: `dequantized_data_gpu` is undefined, or not always
+            #  defined.
             dequantized_data_trimmed = dequantized_data_gpu[:, :ncols].cpu()
             quantize_data_numpy = quantized_data_gpu.cpu().numpy()
             if quant_padding_float_type:
diff --git a/fbgemm_gpu/test/sparse/permute_indices_test.py b/fbgemm_gpu/test/sparse/permute_indices_test.py
index 00fcadec44..fa4fa490c5 100644
--- a/fbgemm_gpu/test/sparse/permute_indices_test.py
+++ b/fbgemm_gpu/test/sparse/permute_indices_test.py
@@ -87,7 +87,10 @@ def test_permute_indices(
             )
             for t in range(T):
                 for w in range(W):
+                    # pyre-fixme[61]: `batch_sizes` is undefined, or not always defined.
                     for b in range(batch_sizes[w]):
+                        # pyre-fixme[61]: `batch_sizes` is undefined, or not always
+                        #  defined.
                         permute_list.append(offset_w[w] + t * batch_sizes[w] + b)
         else:
             permute_list = list(range(T))