diff --git a/src/event_bus.c b/src/event_bus.c
index eb04f68..636612f 100644
--- a/src/event_bus.c
+++ b/src/event_bus.c
@@ -110,7 +110,11 @@ int event_bus_publish(size_t id, void *arg)
 int event_bus_subscribe(size_t id, callback_t callback, void *data)
 {
     elem_t *topic_elem = linked_list_get_if(&game.event_bus.topics, condition_is_topic_id, &id);
-    if(!topic_elem) return_failure_int;
+    if(!topic_elem)
+    {
+        error_printf("Topic with id : %lu doesn't exists.", id);
+        return EXIT_FAILURE;
+    }
 
     topic_t *topic = topic_elem->data;