diff --git a/ext/win32/resolv/resolv.c b/ext/win32/resolv/resolv.c
index 03252f5ffc..436d62cc7b 100644
--- a/ext/win32/resolv/resolv.c
+++ b/ext/win32/resolv/resolv.c
@@ -67,6 +67,5 @@ InitVM_resolv(void)
 void
 Init_resolv(void)
 {
-    message_free = (rb_w32_osver() >= 10) ? heap_free : local_free;
     InitVM(resolv);
 }