diff --git a/core/misc/singleton/singleton.h b/core/misc/singleton/singleton.h
index 98fcb87..6693f30 100644
--- a/core/misc/singleton/singleton.h
+++ b/core/misc/singleton/singleton.h
@@ -48,5 +48,5 @@ public:
     extern "C" CORE_API inline T* get_##T() { return &g_##T; }
 #else
 #define DEFINE_SINGLETON_INSTANCE(T) \
-    extern "C" CORE_API inline T* get_##T();
+    extern "C" CORE_API T* get_##T();
 #endif