diff --git a/msvc/ecl-threads.def b/msvc/ecl-threads.def
index e4ea6e9e2..394ce485f 100755
--- a/msvc/ecl-threads.def
+++ b/msvc/ecl-threads.def
@@ -13,6 +13,7 @@ EXPORTS
 	GC_malloc_atomic_ignore_off_page
 	GC_free
 	GC_dont_gc		DATA
+	GC_CreateThread
 
 	; all_symbols