diff --git a/vlib/v/checker/checker.v b/vlib/v/checker/checker.v
index 3c1f5cebe7..9c32cd8d43 100644
--- a/vlib/v/checker/checker.v
+++ b/vlib/v/checker/checker.v
@@ -307,11 +307,13 @@ pub fn (c mut Checker) method_call_expr(method_call_expr mut ast.MethodCallExpr)
 		return info.elem_type
 	}
 	if method := c.table.type_find_method(typ_sym, name) {
-		if method_call_expr.args.len < method.args.len - 1 {
-			c.error('too few arguments in call to `${typ_sym.name}.$name`', method_call_expr.pos)
+		no_args := method.args.len - 1
+		min_required_args := method.args.len - if method.is_variadic && method.args.len > 1 { 2 } else { 1 }
+		if method_call_expr.args.len < min_required_args {
+			c.error('too few arguments in call to `${typ_sym.name}.$name` ($method_call_expr.args.len instead of $min_required_args)', method_call_expr.pos)
 		}
-		else if !method.is_variadic && method_call_expr.args.len > method.args.len + 1 {
-			c.error('too many arguments in call to `${typ_sym.name}.$name` ($method_call_expr.args.len instead of $method.args.len)', method_call_expr.pos)
+		else if !method.is_variadic && method_call_expr.args.len > no_args {
+			c.error('too many arguments in call to `${typ_sym.name}.$name` ($method_call_expr.args.len instead of $no_args)', method_call_expr.pos)
 		}
 		// if name == 'clone' {
 		// println('CLONE nr args=$method.args.len')
diff --git a/vlib/v/parser/fn.v b/vlib/v/parser/fn.v
index 45918de0f4..de42eb5be4 100644
--- a/vlib/v/parser/fn.v
+++ b/vlib/v/parser/fn.v
@@ -137,6 +137,7 @@ fn (p mut Parser) fn_decl() ast.FnDecl {
 			name: name
 			args: args
 			return_type: return_type
+			is_variadic: is_variadic
 		})
 	}
 	else {