diff --git a/mlir/tools/mlir-reduce/ReductionTreeUtils.cpp b/mlir/tools/mlir-reduce/ReductionTreeUtils.cpp
index 5fdb1341f89c8..13d35a258affe 100644
--- a/mlir/tools/mlir-reduce/ReductionTreeUtils.cpp
+++ b/mlir/tools/mlir-reduce/ReductionTreeUtils.cpp
@@ -32,8 +32,10 @@ void ReductionTreeUtils::updateSmallestNode(ReductionNode *currNode,
                                             ReductionNode *&smallestNode,
                                             std::vector<int> path) {
   LLVM_DEBUG(llvm::dbgs() << "\nTree Path: root");
+  #ifndef NDEBUG
   for (int nodeIndex : path)
     LLVM_DEBUG(llvm::dbgs() << " -> " << nodeIndex);
+  #endif
 
   LLVM_DEBUG(llvm::dbgs() << "\nSize (chars): " << currNode->getSize());
   if (currNode->getSize() < smallestNode->getSize()) {