diff --git a/Driver/PrintPreprocessedOutput.cpp b/Driver/PrintPreprocessedOutput.cpp
index bdf6d04..109664b 100644
--- a/Driver/PrintPreprocessedOutput.cpp
+++ b/Driver/PrintPreprocessedOutput.cpp
@@ -531,8 +531,7 @@
 
 /// DoPrintPreprocessedInput - This implements -E mode.
 ///
-void clang::DoPrintPreprocessedInput(unsigned MainFileID, Preprocessor &PP,
-                                     const LangOptions &Options) {
+void clang::DoPrintPreprocessedInput(unsigned MainFileID, Preprocessor &PP) {
   // Inform the preprocessor whether we want it to retain comments or not, due
   // to -C or -CC.
   PP.SetCommentRetentionState(EnableCommentOutput, EnableMacroCommentOutput);