diff --git a/mlir/tools/mlir-tblgen/CppGenUtilities.cpp b/mlir/tools/mlir-tblgen/CppGenUtilities.cpp
index 7cead353396dd..6c05d5336224d 100644
--- a/mlir/tools/mlir-tblgen/CppGenUtilities.cpp
+++ b/mlir/tools/mlir-tblgen/CppGenUtilities.cpp
@@ -18,8 +18,8 @@ void mlir::tblgen::emitSummaryAndDescComments(llvm::raw_ostream &os,
                                               llvm::StringRef summary,
                                               llvm::StringRef description,
                                               bool terminateComment) {
-  StringRef trimmedSummary = summary.trim();
-  StringRef trimmedDesc = description.trim();
+  StringRef trimmedSummary = summary.rtrim();
+  StringRef trimmedDesc = description.rtrim();
   raw_indented_ostream ros(os);
 
   bool empty = true;