diff --git a/lib/Conversion/TorchToStablehlo/Pooling.cpp b/lib/Conversion/TorchToStablehlo/Pooling.cpp
index 7c28a2fd3..e90f231c7 100644
--- a/lib/Conversion/TorchToStablehlo/Pooling.cpp
+++ b/lib/Conversion/TorchToStablehlo/Pooling.cpp
@@ -569,11 +569,13 @@ LogicalResult ConvertAtenOp<AtenCumsumOp>::matchAndRewrite(
     ConversionPatternRewriter &rewriter) const {
   Value input = adaptor.getSelf();
   auto inputTy = input.getType().cast<RankedTensorType>();
+  auto outTy =
+      getTypeConverter()->convertType(op.getType()).cast<RankedTensorType>();
+  input = hlo::promoteType(rewriter, op.getLoc(), input, outTy);
+  inputTy = input.getType().cast<RankedTensorType>();
   auto inputElemTy = inputTy.getElementType();
   auto inputRank = inputTy.getRank();
   auto inputShape = inputTy.getShape();
-  auto outTy =
-      getTypeConverter()->convertType(op.getType()).cast<RankedTensorType>();
 
   int64_t dim;
   if (!matchPattern(op.getDim(), m_TorchConstantInt(&dim))) {