diff --git a/CInterface/Core.cpp b/CInterface/Core.cpp
index c097023..beca1ae 100644
--- a/CInterface/Core.cpp
+++ b/CInterface/Core.cpp
@@ -1,4 +1,4 @@
 #include "Core.hpp"
 
 std::string ExceptionHandler::_lastException = "";
-export const char* GetLastException() { return ExceptionHandler::GetLastException(); }
+export const char* CreatureLib_C_GetLastException() { return ExceptionHandler::GetLastException(); }
diff --git a/CInterface/Core.hpp b/CInterface/Core.hpp
index 966e3ed..76e5995 100644
--- a/CInterface/Core.hpp
+++ b/CInterface/Core.hpp
@@ -6,6 +6,8 @@
 #include <string>
 #define export extern "C"
 
+#define CreatureLibException 1;
+
 class ExceptionHandler {
     static std::string _lastException;
 
@@ -20,7 +22,7 @@ public:
         return 0;                                                                                                      \
     } catch (const std::exception& e) {                                                                                \
         ExceptionHandler::SetLastException(e);                                                                         \
-        return 1;                                                                                                      \
+        return CreatureLibException;                                                                                   \
     }
 
 #endif // CREATURELIB_CORE_HPP