diff --git a/cogl/cogl/cogl-poll-private.h b/cogl/cogl/cogl-poll-private.h
index 63b386099..2afba7a87 100644
--- a/cogl/cogl/cogl-poll-private.h
+++ b/cogl/cogl/cogl-poll-private.h
@@ -48,11 +48,6 @@ _cogl_poll_renderer_add_fd (CoglRenderer *renderer,
                             CoglPollDispatchCallback dispatch,
                             void *user_data);
 
-void
-_cogl_poll_renderer_modify_fd (CoglRenderer *renderer,
-                               int fd,
-                               CoglPollFDEvent events);
-
 typedef struct _CoglPollSource CoglPollSource;
 
 CoglPollSource *
diff --git a/cogl/cogl/cogl-poll.c b/cogl/cogl/cogl-poll.c
index 2a424c2da..df954ba29 100644
--- a/cogl/cogl/cogl-poll.c
+++ b/cogl/cogl/cogl-poll.c
@@ -168,25 +168,6 @@ _cogl_poll_renderer_remove_fd (CoglRenderer *renderer, int fd)
     }
 }
 
-void
-_cogl_poll_renderer_modify_fd (CoglRenderer *renderer,
-                               int fd,
-                               CoglPollFDEvent events)
-{
-  int fd_index = find_pollfd (renderer, fd);
-
-  if (fd_index == -1)
-    g_warn_if_reached ();
-  else
-    {
-      CoglPollFD *pollfd =
-        &g_array_index (renderer->poll_sources, CoglPollFD, fd_index);
-
-      pollfd->events = events;
-      renderer->poll_fds_age++;
-    }
-}
-
 void
 _cogl_poll_renderer_add_fd (CoglRenderer *renderer,
                             int fd,