diff --git a/adapter/outboundgroup/loadbalance.go b/adapter/outboundgroup/loadbalance.go
index 380b0d06..f396ff04 100644
--- a/adapter/outboundgroup/loadbalance.go
+++ b/adapter/outboundgroup/loadbalance.go
@@ -30,10 +30,8 @@ type LoadBalance struct {
 var errStrategy = errors.New("unsupported strategy")
 
 func parseStrategy(config map[string]any) string {
-	if elm, ok := config["strategy"]; ok {
-		if strategy, ok := elm.(string); ok {
-			return strategy
-		}
+	if strategy, ok := config["strategy"].(string); ok {
+		return strategy
 	}
 	return "consistent-hashing"
 }
diff --git a/adapter/outboundgroup/urltest.go b/adapter/outboundgroup/urltest.go
index 61597498..fd6d6818 100644
--- a/adapter/outboundgroup/urltest.go
+++ b/adapter/outboundgroup/urltest.go
@@ -125,10 +125,8 @@ func parseURLTestOption(config map[string]any) []urlTestOption {
 	opts := []urlTestOption{}
 
 	// tolerance
-	if elm, ok := config["tolerance"]; ok {
-		if tolerance, ok := elm.(int); ok {
-			opts = append(opts, urlTestWithTolerance(uint16(tolerance)))
-		}
+	if tolerance, ok := config["tolerance"].(int); ok {
+		opts = append(opts, urlTestWithTolerance(uint16(tolerance)))
 	}
 
 	return opts