1 files changed, 5 insertions, 4 deletions
diff --git a/ext/dba/dba_db4.c b/ext/dba/dba_db4.c
index 6dee094832..93ec4bc235 100644
--- a/ext/dba/dba_db4.c
+++ b/ext/dba/dba_db4.c
@@ -77,14 +77,15 @@ DBA_OPEN_FUNC(db4)
 		info->mode == DBA_WRITER ? 0         : 
 		info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
 
-	if (info->flags & DBA_PERSISTENT) {
-		gmode |= DB_THREAD;
-	}
-
 	if (gmode == -1) {
 		return FAILURE; /* not possible */
 	}
 
+	gmode |= DB_INIT_LOCK;
+	if (info->flags & DBA_PERSISTENT) {
+		gmode |= DB_THREAD;
+	}
+
 	if (info->argc > 0) {
 		convert_to_long_ex(info->argv[0]);
 		filemode = Z_LVAL_PP(info->argv[0]);