diff --git a/clang-tools-extra/modularize/PreprocessorTracker.cpp b/clang-tools-extra/modularize/PreprocessorTracker.cpp
index 1df90698e26f..a9d61f05d045 100644
--- a/clang-tools-extra/modularize/PreprocessorTracker.cpp
+++ b/clang-tools-extra/modularize/PreprocessorTracker.cpp
@@ -429,7 +429,7 @@ static std::string getMacroExpandedString(clang::Preprocessor &PP,
     const clang::Token *ArgTok = Args->getUnexpArgument(ArgNo);
     if (Args->ArgNeedsPreexpansion(ArgTok, PP))
       ResultArgToks = &(const_cast<clang::MacroArgs *>(Args))
-          ->getPreExpArgument(ArgNo, MI, PP)[0];
+          ->getPreExpArgument(ArgNo, PP)[0];
     else
       ResultArgToks = ArgTok; // Use non-preexpanded Tokens.
     // If the arg token didn't expand into anything, ignore it.