diff --git a/rest/config.go b/rest/config.go
index c7c2a9fdcd..1f810e94db 100644
--- a/rest/config.go
+++ b/rest/config.go
@@ -1459,6 +1459,8 @@ func (sc *ServerContext) fetchAndLoadDatabaseSince(ctx context.Context, dbName s
 }
 
 func (sc *ServerContext) fetchAndLoadDatabase(nonContextStruct base.NonCancellableContext, dbName string) (found bool, err error) {
+	sc.lock.Lock()
+	defer sc.lock.Unlock()
 	return sc._fetchAndLoadDatabase(nonContextStruct, dbName)
 }