diff --git a/mlir/lib/Dialect/SCF/Utils/Utils.cpp b/mlir/lib/Dialect/SCF/Utils/Utils.cpp
index 684dff8121de6..fc93cf35a5242 100644
--- a/mlir/lib/Dialect/SCF/Utils/Utils.cpp
+++ b/mlir/lib/Dialect/SCF/Utils/Utils.cpp
@@ -202,8 +202,7 @@ FailureOr<func::FuncOp> mlir::outlineSingleBlockRegion(RewriterBase &rewriter,
       OpBuilder::InsertionGuard g(rewriter);
       rewriter.setInsertionPointToStart(outlinedFuncBody);
       if (Operation *cst = orig.getDefiningOp<arith::ConstantIndexOp>()) {
-        IRMapping bvm;
-        repl = rewriter.clone(*cst, bvm)->getResult(0);
+        repl = rewriter.clone(*cst)->getResult(0);
       }
     }
     orig.replaceUsesWithIf(repl, [&](OpOperand &opOperand) {