diff --git a/tsdb/ooo_head_test.go b/tsdb/ooo_head_test.go
index b9badfea21..b1641e29ba 100644
--- a/tsdb/ooo_head_test.go
+++ b/tsdb/ooo_head_test.go
@@ -27,7 +27,6 @@ import (
 
 const testMaxSize int = 32
 
-// Formulas chosen to make testing easy.
 // Formulas chosen to make testing easy.
 func valEven(pos int) int64 { return int64(pos*2 + 2) } // s[0]=2, s[1]=4, s[2]=6, ..., s[31]=64 - Predictable pre-existing values
 func valOdd(pos int) int64  { return int64(pos*2 + 1) } // s[0]=1, s[1]=3, s[2]=5, ..., s[31]=63 - New values will interject at chosen position because they sort before the pre-existing vals.