diff --git a/src/coreclr/jit/lsraarm64.cpp b/src/coreclr/jit/lsraarm64.cpp
index d7c801e552d67..26fad32f6d8cf 100644
--- a/src/coreclr/jit/lsraarm64.cpp
+++ b/src/coreclr/jit/lsraarm64.cpp
@@ -1412,7 +1412,7 @@ int LinearScan::BuildHWIntrinsic(GenTreeHWIntrinsic* intrinsicTree, int* pDstCou
     BuildHWIntrinsicImmediate(intrinsicTree, intrin);
 
     // Build all Operands
-    for (int opNum = 1; opNum <= intrin.numOperands; opNum++)
+    for (size_t opNum = 1; opNum <= intrin.numOperands; opNum++)
     {
         GenTree* operand = intrinsicTree->Op(opNum);