diff --git a/include/cpp_core/module_api.h b/include/cpp_core/module_api.h
index 11d7116..e066a42 100644
--- a/include/cpp_core/module_api.h
+++ b/include/cpp_core/module_api.h
@@ -1,7 +1,7 @@
 #pragma once
 
 #if defined(_WIN32) || defined(__CYGWIN__)
-#ifdef cpp_windows_bindings_EXPORTS
+#ifdef cpp_bindings_windows_EXPORTS
 #define MODULE_API __declspec(dllexport)
 #else
 #define MODULE_API __declspec(dllimport)