diff --git a/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp b/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
index a77eb0240e677..b843b8344d15c 100644
--- a/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
@@ -5695,8 +5695,8 @@ static SDValue combineMulWide(SDNode *N, TargetLowering::DAGCombinerInfo &DCI,
   SDValue RHS = Op.getOperand(1);
   if (Op.getOpcode() == ISD::SHL) {
     const auto ShiftAmt = Op.getConstantOperandVal(1);
-    const auto MulVal = APInt(ToVT.getSizeInBits(), 1) << ShiftAmt;
-    RHS = DCI.DAG.getConstant(MulVal, DL, ToVT);
+    const auto MulVal = APInt(FromVT.getSizeInBits(), 1) << ShiftAmt;
+    RHS = DCI.DAG.getConstant(MulVal, DL, FromVT);
   }
   return DCI.DAG.getNode(Opcode, DL, ToVT, Op.getOperand(0), RHS);
 }