--- channels/chan_misdn.c	2011-03-15 16:07:27.000000000 +0200
+++ ../clean/asterisk-1.8.4-rc2/channels/chan_misdn.c	2010-11-29 22:46:03.000000000 +0200
@@ -12466,7 +12466,7 @@
 		jb->ok[i] = 0;
 	}
 
-	ast_mutex_init_notracking(&jb->mutexjb);
+	ast_mutex_init(&jb->mutexjb);
 
 	return jb;
 }