diff --git a/src/operator/nn/batch_norm.cc b/src/operator/nn/batch_norm.cc
index 60f955399877..1bbdfa63160f 100644
--- a/src/operator/nn/batch_norm.cc
+++ b/src/operator/nn/batch_norm.cc
@@ -374,7 +374,7 @@ static bool BatchNormShape(const nnvm::NodeAttrs& attrs,
       : param.axis);
   CHECK_LT(channelAxis, dshape.ndim()) << "Channel axis out of range: " << param.axis;
 
-  const int channelCount = dshape[channelAxis];
+  const index_t channelCount = dshape[channelAxis];
 
   in_shape->at(batchnorm::kGamma) = mxnet::TShape(Shape1(channelCount));
   in_shape->at(batchnorm::kBeta) = mxnet::TShape(Shape1(channelCount));
diff --git a/src/operator/nn/layer_norm.cc b/src/operator/nn/layer_norm.cc
index c3ccd0d7a6bc..11178b358c2d 100644
--- a/src/operator/nn/layer_norm.cc
+++ b/src/operator/nn/layer_norm.cc
@@ -51,7 +51,7 @@ static bool LayerNormShape(const nnvm::NodeAttrs& attrs,
   CHECK(axis >= 0 && axis < dshape.ndim())
     << "Channel axis out of range: axis=" << param.axis;
 
-  const int channelCount = dshape[axis];
+  const index_t channelCount = dshape[axis];
 
   SHAPE_ASSIGN_CHECK(*in_shape,
                      layernorm::kGamma,