diff --git a/src/mod/timers/mod_posix_timer/mod_posix_timer.c b/src/mod/timers/mod_posix_timer/mod_posix_timer.c
index 1ba3e23015..425e98c93d 100644
--- a/src/mod/timers/mod_posix_timer/mod_posix_timer.c
+++ b/src/mod/timers/mod_posix_timer/mod_posix_timer.c
@@ -59,7 +59,7 @@ static struct {
 /**
  * Notified by POSIX timer of a tick
  */
-static void posix_timer_notify(sigval_t data)
+static void posix_timer_notify(union sigval data)
 {
 	interval_timer_t *it = (interval_timer_t *)data.sival_ptr;
 	switch_mutex_lock(it->mutex);