diff --git a/lib/ftp.c b/lib/ftp.c
index 80841ee37..59fc1157a 100644
--- a/lib/ftp.c
+++ b/lib/ftp.c
@@ -1142,7 +1142,7 @@ static CURLcode ftp_state_use_port(struct connectdata *conn,
      below */
   Curl_printable_address(ai, myhost, sizeof(myhost));
 
-#ifdef PF_INET6
+#ifdef ENABLE_IPV6
   if(!conn->bits.ftp_use_eprt && conn->bits.ipv6)
     /* EPRT is disabled but we are connected to a IPv6 host, so we ignore the
        request and enable EPRT again! */
@@ -1163,11 +1163,13 @@ static CURLcode ftp_state_use_port(struct connectdata *conn,
     case AF_INET:
       port = ntohs(sa4->sin_port);
       break;
+#ifdef ENABLE_IPV6
     case AF_INET6:
       port = ntohs(sa6->sin6_port);
       break;
+#endif
     default:
-      break;
+      continue; /* might as well skip this */
     }
 
     if(EPRT == fcmd) {