diff --git a/Driver/DiagChecker.cpp b/Driver/DiagChecker.cpp
index eeba859..5b1669b 100644
--- a/Driver/DiagChecker.cpp
+++ b/Driver/DiagChecker.cpp
@@ -170,7 +170,7 @@
   return true;
 }
 
-/// CompareDiagLists - Compare two diangnostic lists and return the difference
+/// CompareDiagLists - Compare two diagnostic lists and return the difference
 /// between them.
 /// 
 static bool CompareDiagLists(SourceManager &SourceMgr,