diff --git a/job.go b/job.go
index eb57202..e5ce7a7 100644
--- a/job.go
+++ b/job.go
@@ -1915,12 +1915,12 @@ func jobGetVault(j Job) {
 
 	reqTab = make(map[int64]int64)
 	for k, v := range items {
-		reqTab[cacheObjSubType[v]] = 1 << k
+		reqTab[cacheObjSubType[v]] = 1 << uint(k)
 	}
 
 	doneTab = make(map[int64]int64)
 	for k, v := range items {
-		doneTab[cacheObjSubType[v]] = 1 << (10 + k)
+		doneTab[cacheObjSubType[v]] = 1 << (10 + uint(k))
 	}
 
 	err := setJobStart(j.ID64)