diff --git a/include/llvm/Transforms/Instrumentation.h b/include/llvm/Transforms/Instrumentation.h
index 5511cefc4c6..698e248e7e6 100644
--- a/include/llvm/Transforms/Instrumentation.h
+++ b/include/llvm/Transforms/Instrumentation.h
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This files defines constructor functions for instrumentation passes.
+// This file defines constructor functions for instrumentation passes.
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/Transforms/Instrumentation/ProfilingUtils.cpp b/lib/Transforms/Instrumentation/ProfilingUtils.cpp
index 47bfcfcf864..fd31cec643a 100644
--- a/lib/Transforms/Instrumentation/ProfilingUtils.cpp
+++ b/lib/Transforms/Instrumentation/ProfilingUtils.cpp
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This files implements a few helper functions which are used by profile
+// This file implements a few helper functions which are used by profile
 // instrumentation code to instrument the code.  This allows the profiler pass
 // to worry about *what* to insert, and these functions take care of *how* to do
 // it.
diff --git a/lib/Transforms/Instrumentation/ProfilingUtils.h b/lib/Transforms/Instrumentation/ProfilingUtils.h
index 643b9e1b12c..94efffec8a3 100644
--- a/lib/Transforms/Instrumentation/ProfilingUtils.h
+++ b/lib/Transforms/Instrumentation/ProfilingUtils.h
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This files defines a few helper functions which are used by profile
+// This file defines a few helper functions which are used by profile
 // instrumentation code to instrument the code.  This allows the profiler pass
 // to worry about *what* to insert, and these functions take care of *how* to do
 // it.