diff --git a/llvm/lib/Target/PowerPC/README_P9.txt b/llvm/lib/Target/PowerPC/README_P9.txt
--- a/llvm/lib/Target/PowerPC/README_P9.txt
+++ b/llvm/lib/Target/PowerPC/README_P9.txt
@@ -1,4 +1,4 @@
-//===- README_P9.txt - Notes for improving Power9 code gen ----------------===//
+//===- README_P9.txt - Notes for improving Power9 code geneneration ----------===//
 
 TODO: Instructions Need Implement Instrinstics or Map to LLVM IR