diff --git a/app/vmalert/datasource/datasource.go b/app/vmalert/datasource/datasource.go
index 0be45cec5d..547ef39861 100644
--- a/app/vmalert/datasource/datasource.go
+++ b/app/vmalert/datasource/datasource.go
@@ -8,7 +8,7 @@ type Metric struct {
 	Value     float64
 }
 
-// Labels represents metric's label
+// Label represents metric's label
 type Label struct {
 	Name  string
 	Value string