--- a/mDNSPosix/mDNSPosix.c
+++ b/mDNSPosix/mDNSPosix.c
@@ -1673,7 +1673,7 @@ mDNSexport mDNSs32 mDNSPlatformGetServic
     return -1;
 }
 
-mDNSexport void mDNSPlatformSetDelegatePID(UDPSocket *src, const mDNSAddr *dst, DNSQuestion *q)
+mDNSexport void mDNSPlatformSetuDNSSocktOpt(UDPSocket *src, const mDNSAddr *dst, DNSQuestion *q)
 {
     (void) src;
     (void) dst;