diff --git a/mlir/lib/Rewrite/PatternApplicator.cpp b/mlir/lib/Rewrite/PatternApplicator.cpp
index e13bcff2767ec..23ae95a8cca47 100644
--- a/mlir/lib/Rewrite/PatternApplicator.cpp
+++ b/mlir/lib/Rewrite/PatternApplicator.cpp
@@ -37,9 +37,9 @@ PatternApplicator::~PatternApplicator() = default;
 #ifndef NDEBUG
 /// Log a message for a pattern that is impossible to match.
 static void logImpossibleToMatch(const Pattern &pattern) {
-  llvm::dbgs() << "Ignoring pattern '" << pattern.getRootKind()
-               << "' because it is impossible to match or cannot lead "
-                  "to legal IR (by cost model)\n";
+  LDBG() << "Ignoring pattern '" << pattern.getRootKind()
+         << "' because it is impossible to match or cannot lead "
+            "to legal IR (by cost model)";
 }
 
 /// Log IR after pattern application.