diff --git a/mlir/lib/Conversion/LLVMCommon/MemRefBuilder.cpp b/mlir/lib/Conversion/LLVMCommon/MemRefBuilder.cpp
--- a/mlir/lib/Conversion/LLVMCommon/MemRefBuilder.cpp
+++ b/mlir/lib/Conversion/LLVMCommon/MemRefBuilder.cpp
@@ -482,7 +482,8 @@
                                        LLVM::LLVMPointerType elemPtrType) {
   Value offsetPtr =
       offsetBasePtr(builder, loc, typeConverter, memRefDescPtr, elemPtrType);
-  return builder.create<LLVM::LoadOp>(loc, offsetPtr);
+  return builder.create<LLVM::LoadOp>(loc, typeConverter.getIndexType(),
+                                      offsetPtr);
 }
 
 void UnrankedMemRefDescriptor::setOffset(OpBuilder &builder, Location loc,