diff --git a/caffe2/operators/deform_conv_op_impl.h b/caffe2/operators/deform_conv_op_impl.h
index 6c1b7c9601f2..4acd92267b26 100644
--- a/caffe2/operators/deform_conv_op_impl.h
+++ b/caffe2/operators/deform_conv_op_impl.h
@@ -155,7 +155,8 @@ bool DeformConvOp<T, Context>::RunOnDeviceWithOrderNCHW() {
     col_buffer->Resize(buffer_shape);
     T* col_buffer_data = col_buffer->template mutable_data<T>();
     // Im2col, followed by gemm.
-    for (C10_UNUSED const auto image_id : c10::irange(N)) {
+    for (const auto image_id : c10::irange(N)) {
+      (void)image_id; // CUDA-10.2 on Windows crashes when C10_UNUSED macro is used
       for (const auto group_id : c10::irange(group_)) {
         DeformableIm2col(
             Xdata + group_id * input_offset,
@@ -342,7 +343,8 @@ bool DeformConvGradientOp<T, Context>::RunOnDeviceWithOrderNCHW() {
     math::Set<T, Context>(dX->numel(), 0, dXdata, &context_);
   }
 
-  for (C10_UNUSED const auto image_id : c10::irange(N)) {
+  for (const auto image_id : c10::irange(N)) {
+    (void)image_id; // CUDA-10.2 on Windows crashes when C10_UNUSED macro is used
     for (const auto group_id : c10::irange(group_)) {
       math::Gemm<T, Context>(
           CblasTrans,
diff --git a/caffe2/operators/piecewise_linear_transform_op.h b/caffe2/operators/piecewise_linear_transform_op.h
index 6c4abce9ec9a..8a88f8b834be 100644
--- a/caffe2/operators/piecewise_linear_transform_op.h
+++ b/caffe2/operators/piecewise_linear_transform_op.h
@@ -62,7 +62,8 @@ class PiecewiseLinearTransformOp final : public Operator<Context> {
       const int64_t num_bounds_per_group,
       const int64_t num_group) {
     const T* start = bounds;
-    for (C10_UNUSED const auto i : c10::irange(num_group)) {
+    for (const auto i : c10::irange(num_group)) {
+      (void)i; // CUDA-10.2 on Windows crashes when C10_UNUSED macro is used
       if (!std::is_sorted(start, start + num_bounds_per_group)) {
         return false;
       }