diff --git a/lib/isc/win32/libisc.def b/lib/isc/win32/libisc.def
index 9b642cf49c..3fd662687d 100644
--- a/lib/isc/win32/libisc.def
+++ b/lib/isc/win32/libisc.def
@@ -246,6 +246,7 @@ isc_mem_detach
 isc_mem_getquota
 isc_mem_inuse
 isc_mem_ondestroy
+isc_mem_references
 isc_mem_setdestroycheck
 isc_mem_setquota
 isc_mem_setwater