diff --git a/channels/chan_misdn.c b/channels/chan_misdn.c
index 9b4cc94100..47b48beeb2 100644
--- a/channels/chan_misdn.c
+++ b/channels/chan_misdn.c
@@ -5578,6 +5578,7 @@ void misdn_jb_destroy(struct misdn_jb *jb)
 {
 	ast_mutex_destroy(&jb->mutexjb);
 	
+	ast_free(jb->ok);
 	ast_free(jb->samples);
 	ast_free(jb);
 }