diff --git a/src/modules/alsa-util.h b/src/modules/alsa-util.h
index 5494b40de..442c26457 100644
--- a/src/modules/alsa-util.h
+++ b/src/modules/alsa-util.h
@@ -32,6 +32,8 @@
 #include <pulse/channelmap.h>
 #include <pulse/proplist.h>
 
+#include <pulsecore/rtpoll.h>
+
 typedef struct pa_alsa_fdlist pa_alsa_fdlist;
 
 struct pa_alsa_fdlist *pa_alsa_fdlist_new(void);
@@ -92,4 +94,6 @@ void pa_alsa_init_proplist(pa_proplist *p, snd_pcm_info_t *pcm_info);
 
 int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents);
 
+pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll);
+
 #endif