diff --git a/src/include/libks/ks_platform.h b/src/include/libks/ks_platform.h
index dfb8ede8..7f736c49 100644
--- a/src/include/libks/ks_platform.h
+++ b/src/include/libks/ks_platform.h
@@ -58,8 +58,10 @@ KS_BEGIN_EXTERN_C
 #endif
 #define _CRTDBG_MAP_ALLOC
 #else
+#ifndef __KS_FUNC__
 #define __KS_FUNC__ (const char *)__func__
 #endif
+#endif
 
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE