diff --git a/roaring/roaring.go b/roaring/roaring.go
index 269f9ec57..aef03a82c 100644
--- a/roaring/roaring.go
+++ b/roaring/roaring.go
@@ -605,8 +605,8 @@ func (b *Bitmap) unionIntoTarget(target *Bitmap, others ...*Bitmap) {
 
 	// Performing the popcount() operation with every union is wasteful because
 	// its likely the value will be invalidated by the next union operation. As
-	// a result, when we're performing all our in-place unions, we don't repair
-	// the value of n (container cardinality), and then at the very end we perform
+	// a result, when we're performing all our in-place unions we allow the value of
+	// n (container cardinality) to fall out of sync, and then at the very end we perform
 	// a "Repair" to recalculate all the container values. That way we never popcount()
 	// an entire bitmap container more than once per bulk union operation.
 	target.Containers.Repair()