diff --git a/src/preprocessor/preprocessor.h b/src/preprocessor/preprocessor.h
index c6c8283..4f798ad 100644
--- a/src/preprocessor/preprocessor.h
+++ b/src/preprocessor/preprocessor.h
@@ -209,7 +209,7 @@ class IncludesProcessor : public PPCallbacks {
     /* callback that is invoked when an #include (or #import) is encountered */
     virtual void InclusionDirective(SourceLocation, const Token &, StringRef, bool, CharSourceRange,
                                     const FileEntry *, StringRef, StringRef, const clang::Module *, 
-                                    SrcMgr::CharacteristicKind) override;
+                                    SrcMgr::CharacteristicKind);
 
 
 private:
@@ -272,4 +272,4 @@ class FuzzGenPreprocessor : public ASTFrontendAction {
 };
 
 // ------------------------------------------------------------------------------------------------
-#endif
\ No newline at end of file
+#endif