diff --git a/sdk/lib/crt/wine/heap.c b/sdk/lib/crt/wine/heap.c
index 88db61657c4..ae5e8fa31ee 100644
--- a/sdk/lib/crt/wine/heap.c
+++ b/sdk/lib/crt/wine/heap.c
@@ -445,6 +445,14 @@ void CDECL MSVCRT_free(void* ptr)
   msvcrt_heap_free(ptr);
 }
 
+/*********************************************************************
+ *		_free_base (UCRTBASE.@)
+ */
+void CDECL _free_base(void* ptr)
+{
+  msvcrt_heap_free(ptr);
+}
+
 /*********************************************************************
  *                  malloc (MSVCRT.@)
  */