diff --git a/pkg/services/ngalert/eval/eval.go b/pkg/services/ngalert/eval/eval.go
index f4f7d6733f4..ea6d2e9e1f9 100644
--- a/pkg/services/ngalert/eval/eval.go
+++ b/pkg/services/ngalert/eval/eval.go
@@ -163,9 +163,10 @@ type Result struct {
 	// Results contains the results of all queries, reduce and math expressions
 	Results map[string]data.Frames
 
-	// Values contains the RefID and value of reduce and math expressions.
-	// It does not contain values for classic conditions as the values
-	// in classic conditions do not have a RefID.
+	// Values contains the labels and values for all Threshold, Reduce and Math expressions,
+	// and all conditions of a Classic Condition that are firing. Threshold, Reduce and Math
+	// expressions are indexed by their Ref ID, while conditions in a Classic Condition are
+	// indexed by their Ref ID and the index of the condition. For example, B0, B1, etc.
 	Values map[string]NumberValueCapture
 
 	EvaluatedAt        time.Time