diff --git a/openbsc/src/libmsc/meas_feed.c b/openbsc/src/libmsc/meas_feed.c
index 8466c76..86ba3b7 100644
--- a/openbsc/src/libmsc/meas_feed.c
+++ b/openbsc/src/libmsc/meas_feed.c
@@ -85,7 +85,7 @@
 	return write(ofd->fd, msgb_data(msg), msgb_length(msg));
 }
 
-static int feed_read_cb(struct osmo_fd *ofd, struct msgb *msg)
+static int feed_read_cb(struct osmo_fd *ofd)
 {
 	int rc;
 	char buf[256];