diff --git a/libraries/libldap/open.c b/libraries/libldap/open.c
index feb4235139..d3e4f71d14 100644
--- a/libraries/libldap/open.c
+++ b/libraries/libldap/open.c
@@ -525,6 +525,7 @@ ldap_int_open_connection(
 				}
 				LDAP_MUTEX_UNLOCK( &lo->ldo_mutex );
 			}
+			ber_int_sb_close( conn->lconn_sb );
 			return -1;
 		}
 	}