X-Git-Url: https://git.arvados.org/lightning.git/blobdiff_plain/ab0f3eebd739cb10951a6907f41d49d7ce6bf8b1..77a836b5883e33c11e8e9ef933d0abb6e08bc1a5:/mask.go

diff --git a/mask.go b/mask.go
index 9daf606d66..42232e04f5 100644
--- a/mask.go
+++ b/mask.go
@@ -74,10 +74,10 @@ func (m *mask) freeze(in []interval) intervalTree {
 		itreesize = itreesize * 2
 	}
 	itree := make(intervalTree, itreesize)
-	itree.importSlice(0, in)
-	for i := len(in); i < itreesize; i++ {
+	for i := 0; i < itreesize; i++ {
 		itree[i].maxend = -1
 	}
+	itree.importSlice(0, in)
 	return itree
 }