diff --git a/v2/internal/binding/boundMethod.go b/v2/internal/binding/boundMethod.go
index 30b72af9..f6ffdb60 100644
--- a/v2/internal/binding/boundMethod.go
+++ b/v2/internal/binding/boundMethod.go
@@ -30,6 +30,9 @@ func (b *BoundMethod) OutputCount() int {
 func (b *BoundMethod) ParseArgs(args []json.RawMessage) ([]interface{}, error) {
 
 	result := make([]interface{}, b.InputCount())
+	if len(args) != b.InputCount() {
+		return nil, fmt.Errorf("received %d arguments to method '%s', expected %d", len(args), b.Name, b.InputCount())
+	}
 	for index, arg := range args {
 		typ := b.Inputs[index].reflectType
 		inputValue := reflect.New(typ).Interface()