diff --git a/migrator/stats.go b/migrator/stats.go
index f73e6bf40..6f42d96f6 100644
--- a/migrator/stats.go
+++ b/migrator/stats.go
@@ -169,7 +169,7 @@ func remakeQueue(sq *engine.StatQueue) (out *engine.StatQueue) {
 		MinItems:  sq.MinItems,
 	}
 	for mId, metric := range sq.SQMetrics {
-		id := utils.StatsJoin(utils.SplitConcatenatedKey(mId)...)
+		id := utils.ConcatenatedKey(utils.SplitConcatenatedKey(mId)...)
 		out.SQMetrics[id] = metric
 	}
 	return
diff --git a/migrator/stats_test.go b/migrator/stats_test.go
index 90b156272..5773ddd3f 100644
--- a/migrator/stats_test.go
+++ b/migrator/stats_test.go
@@ -158,9 +158,9 @@ func TestRemakeQueue(t *testing.T) {
 			EventID: "ev1",
 		}},
 		SQMetrics: map[string]engine.StatMetric{
-			"*tcc":          nil,
-			"*sum:Usage":    nil,
-			"*avreage:Cost": nil,
+			"*tcc":           nil,
+			"*sum:~Usage":    nil,
+			"*avreage:~Cost": nil,
 		},
 		MinItems: 2,
 	}
@@ -169,9 +169,9 @@ func TestRemakeQueue(t *testing.T) {
 		ID:      sq.ID,
 		SQItems: sq.SQItems,
 		SQMetrics: map[string]engine.StatMetric{
-			"*tcc":          nil,
-			"*sum#Usage":    nil,
-			"*avreage#Cost": nil,
+			"*tcc":           nil,
+			"*sum:~Usage":    nil,
+			"*avreage:~Cost": nil,
 		},
 		MinItems: sq.MinItems,
 	}