diff --git a/src/libCom/osi/os/WIN32/osdThread.c b/src/libCom/osi/os/WIN32/osdThread.c
index 273ff9027..46f4c1e2b 100644
--- a/src/libCom/osi/os/WIN32/osdThread.c
+++ b/src/libCom/osi/os/WIN32/osdThread.c
@@ -78,6 +78,13 @@ static void threadCleanupWIN32 (void)
     }
 }
 
+/*
+ * threadExitMain ()
+ */
+epicsShareFunc void epicsShareAPI threadExitMain (void)
+{
+}
+
 /*
  * threadInit ()
  */