diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index a4ef63734..0802474ee 100644
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -1282,10 +1282,7 @@ static void network_change_event_subscribe(void)
 {
 	if (!network_change_event_subscription) {
 		network_change_event_subscription = ast_event_subscribe(AST_EVENT_NETWORK_CHANGE,
-			network_change_event_cb,
-			"SIP Network Change ",
-			NULL,
-			AST_EVENT_IE_END);
+			network_change_event_cb, "IAX2 Network Change", NULL, AST_EVENT_IE_END);
 	}
 }
 
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index a4f2febc1..f4fe16a9b 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -14248,9 +14248,7 @@ static void network_change_event_subscribe(void)
 {
 	if (!network_change_event_subscription) {
 		network_change_event_subscription = ast_event_subscribe(AST_EVENT_NETWORK_CHANGE,
-			network_change_event_cb,
-			"SIP Network Change ",
-			NULL, AST_EVENT_IE_END);
+			network_change_event_cb, "SIP Network Change", NULL, AST_EVENT_IE_END);
 	}
 }
 
diff --git a/include/asterisk/event.h b/include/asterisk/event.h
index 9ad3a7082..73f121c97 100644
--- a/include/asterisk/event.h
+++ b/include/asterisk/event.h
@@ -114,7 +114,7 @@ typedef void (*ast_event_cb_t)(const struct ast_event *event, void *userdata);
  * \note A NULL description will cause this function to crash, so watch out!
  */
 struct ast_event_sub *ast_event_subscribe(enum ast_event_type event_type,
-       ast_event_cb_t cb, char *description, void *userdata, ...);
+       ast_event_cb_t cb, const char *description, void *userdata, ...);
 
 /*!
  * \brief Allocate a subscription, but do not activate it
@@ -397,8 +397,7 @@ int ast_event_queue(struct ast_event *event);
  * The event API already knows which events can be cached and how to cache them.
  *
  * \retval 0 success
- * \retval non-zero failure.  If failure is returned, the event must be destroyed
- *         by the caller of this function.
+ * \retval non-zero failure.
  */
 int ast_event_queue_and_cache(struct ast_event *event);
 
diff --git a/main/event.c b/main/event.c
index 4f8b08bb2..a50f611ed 100644
--- a/main/event.c
+++ b/main/event.c
@@ -840,7 +840,7 @@ int ast_event_sub_activate(struct ast_event_sub *sub)
 }
 
 struct ast_event_sub *ast_event_subscribe(enum ast_event_type type, ast_event_cb_t cb,
-	char *description, void *userdata, ...)
+	const char *description, void *userdata, ...)
 {
 	va_list ap;
 	enum ast_event_ie_type ie_type;