diff --git a/internal/collections/ordered_map.go b/internal/collections/ordered_map.go
index d114e363ea..6c9d334c0f 100644
--- a/internal/collections/ordered_map.go
+++ b/internal/collections/ordered_map.go
@@ -243,7 +243,7 @@ func resolveKeyName(k reflect.Value) (string, error) {
 	if k.Kind() == reflect.String {
 		return k.String(), nil
 	}
-	if tm, ok := k.Interface().(encoding.TextMarshaler); ok {
+	if tm, ok := reflect.TypeAssert[encoding.TextMarshaler](k); ok {
 		if k.Kind() == reflect.Pointer && k.IsNil() {
 			return "", nil
 		}