diff --git a/apps/app_mixmonitor.c b/apps/app_mixmonitor.c
index 09824c5015..e78cb1b7f6 100644
--- a/apps/app_mixmonitor.c
+++ b/apps/app_mixmonitor.c
@@ -371,7 +371,7 @@ static void launch_monitor_thread(struct ast_channel *chan, const char *filename
 
 	/* Setup the actual spy before creating our thread */
 	if (ast_audiohook_init(&mixmonitor->audiohook, AST_AUDIOHOOK_TYPE_SPY, mixmonitor_spy_type)) {
-		ast_free(mixmonitor);
+		mixmonitor_free(mixmonitor);
 		return;
 	}
 
@@ -386,7 +386,7 @@ static void launch_monitor_thread(struct ast_channel *chan, const char *filename
 		ast_log(LOG_WARNING, "Unable to add '%s' spy to channel '%s'\n",
 			mixmonitor_spy_type, chan->name);
 		ast_audiohook_destroy(&mixmonitor->audiohook);
-		ast_free(mixmonitor);
+		mixmonitor_free(mixmonitor);
 		return;
 	}