diff --git a/src/CppParser/Parser.cpp b/src/CppParser/Parser.cpp
index 6bd3130b..bfee41b9 100644
--- a/src/CppParser/Parser.cpp
+++ b/src/CppParser/Parser.cpp
@@ -5,6 +5,10 @@
 *
 ************************************************************************/
 
+#ifdef DEBUG
+#undef DEBUG // workaround DEBUG define messing with LLVM COFF headers
+#endif
+
 #include "Parser.h"
 
 #include <llvm/Support/Host.h>