diff --git a/lib/dns/win32/libdns.def.in b/lib/dns/win32/libdns.def.in
index b3936260c1..d1733f49a8 100644
--- a/lib/dns/win32/libdns.def.in
+++ b/lib/dns/win32/libdns.def.in
@@ -332,7 +332,6 @@ dns_dnssec_verifymessage
 dns_dnsseckey_create
 dns_dnsseckey_destroy
 dns_dnssecsignstats_create
-dns_dnssecsignstats_decrement
 dns_dnssecsignstats_dump
 dns_dnssecsignstats_increment
 dns_ds_buildrdata