diff --git a/plugin/pkg/scheduler/api/validation/validation.go b/plugin/pkg/scheduler/api/validation/validation.go
index 7f8f36c2102..21dbea70468 100644
--- a/plugin/pkg/scheduler/api/validation/validation.go
+++ b/plugin/pkg/scheduler/api/validation/validation.go
@@ -35,8 +35,8 @@ func ValidatePolicy(policy schedulerapi.Policy) error {
 	}
 
 	for _, extender := range policy.ExtenderConfigs {
-		if extender.Weight < 0 {
-			validationErrors = append(validationErrors, fmt.Errorf("Priority for extender %s should have a non negative weight applied to it", extender.URLPrefix))
+		if extender.Weight <= 0 {
+			validationErrors = append(validationErrors, fmt.Errorf("Priority for extender %s should have a positive weight applied to it", extender.URLPrefix))
 		}
 	}
 	return utilerrors.NewAggregate(validationErrors)