diff --git a/src/resolve/resolved-dns-stream.h b/src/resolve/resolved-dns-stream.h
index 3faec83467..f18fc919e7 100644
--- a/src/resolve/resolved-dns-stream.h
+++ b/src/resolve/resolved-dns-stream.h
@@ -53,7 +53,6 @@ struct DnsStream {
         size_t n_written, n_read;
         OrderedSet *write_queue;
 
-        int (*on_connection)(DnsStream *s);
         int (*on_packet)(DnsStream *s);
         int (*complete)(DnsStream *s, int error);