1 files changed, 1 insertions, 0 deletions
diff --git a/dbug/dbug.c b/dbug/dbug.c
index c6d95a74c1c..dffd7a44cd8 100644
--- a/dbug/dbug.c
+++ b/dbug/dbug.c
@@ -1642,6 +1642,7 @@ void _db_end_()
 
   cs->stack= &init_settings;
   FreeState(cs, 0);
+  pthread_mutex_destroy(&THR_LOCK_dbug);
   init_done= 0;
 }