diff --git a/src/mocng.cpp b/src/mocng.cpp
index 2522040..d39174c 100644
--- a/src/mocng.cpp
+++ b/src/mocng.cpp
@@ -164,7 +164,11 @@ static void parsePluginMetaData(ClassDef &Def, clang::Expr *Content, clang::Sema
 #if CLANG_VERSION_MAJOR!=3 || CLANG_VERSION_MINOR>5
                 nullptr,
 #endif
-                CurDir, nullptr, nullptr, nullptr);
+                CurDir, nullptr, nullptr, nullptr
+#if CLANG_VERSION_MAJOR >= 5
+                , nullptr
+#endif
+                );
 
             if (!File) {
                 PP.getDiagnostics().Report(GetFromLiteral(StrToks.front(), Val, PP), clang::diag::err_pp_file_not_found)
diff --git a/src/mocppcallbacks.h b/src/mocppcallbacks.h
index dd7c280..8f19fc7 100644
--- a/src/mocppcallbacks.h
+++ b/src/mocppcallbacks.h
@@ -51,7 +51,11 @@ class MocPPCallbacks : public clang::PPCallbacks {
 #endif
 
 
-    void MacroUndefined(const clang::Token& MacroNameTok, MacroParam) override {
+    void MacroUndefined(const clang::Token& MacroNameTok, MacroParam
+#if CLANG_VERSION_MAJOR >= 5
+                        , const clang::MacroDirective *
+#endif
+                        ) override {
         //Workaround to get moc's test to compile
         if (MacroNameTok.getIdentifierInfo()->getName() == "QT_NO_KEYWORDS") {
             //re-inject qobjectdefs