diff --git a/Doxyfile b/Doxyfile
index a9cda1ad..2d66bbdb 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -58,6 +58,8 @@ INPUT                  = event.h evdns.h evhttp.h evrpc.h \
 		       include/event2/buffer.h include/event2/thread.h \
 		       include/event2/tag.h include/event2/bufferevent.h \
 		       include/event2/util.h \
+		       include/event2/dns.h include/event2/dns_struct.h \
+		       include/event2/dns_compat.h \
 		       include/event2/http.h include/event2/http_struct.h \
 		       include/event2/http_compat.h