diff --git a/src/disp/disp.h b/src/disp/disp.h
index 23e7b74..b7daffc 100644
--- a/src/disp/disp.h
+++ b/src/disp/disp.h
@@ -96,7 +96,7 @@ int wfd_session_pause(struct wfd_session *s);
 int wfd_session_teardown(struct wfd_session *s);
 int wfd_session_terminate(struct wfd_session *s);
 
-int wfd_session_is_established(struct wfd_session *s);
+bool wfd_session_is_established(struct wfd_session *s);
 unsigned int wfd_session_get_id(struct wfd_session *s);
 const char * wfd_session_get_stream_url(struct wfd_session *s);
 enum wfd_session_state wfd_session_get_state(struct wfd_session *s);
diff --git a/src/disp/wfd-session.c b/src/disp/wfd-session.c
index 5fd0286..5b3c3b8 100644
--- a/src/disp/wfd-session.c
+++ b/src/disp/wfd-session.c
@@ -149,7 +149,7 @@ void wfd_session_set_state(struct wfd_session *s,
 	wfd_fn_session_properties_changed(s, "State");
 }
 
-int wfd_session_is_established(struct wfd_session *s)
+bool wfd_session_is_established(struct wfd_session *s)
 {
 	assert_retv(wfd_is_session(s), false);