diff --git a/indra/llcorehttp/_refcounted.cpp b/indra/llcorehttp/_refcounted.cpp
index 2c132e1b366c593230097402079c218b3fa00f66..11d75fdf97d7f7ac634433f29a68c98df97fa6f6 100644
--- a/indra/llcorehttp/_refcounted.cpp
+++ b/indra/llcorehttp/_refcounted.cpp
@@ -30,6 +30,12 @@
 namespace LLCoreInt
 {
 
+#if		! defined(WIN32)
+
+const S32 RefCounted::NOT_REF_COUNTED;
+
+#endif	// ! defined(WIN32)
+
 RefCounted::~RefCounted()
 {}