diff --git a/llvm/tools/llvm-mca/llvm-mca.cpp b/llvm/tools/llvm-mca/llvm-mca.cpp
--- a/llvm/tools/llvm-mca/llvm-mca.cpp
+++ b/llvm/tools/llvm-mca/llvm-mca.cpp
@@ -236,6 +236,9 @@
     return nullptr;
   }
 
+  // Update TripleName with the updated triple from the target lookup.
+  TripleName = TheTriple.str();
+
   // Return the found target.
   return TheTarget;
 }