diff --git a/test/fixedbugs/issue54911.go b/test/fixedbugs/issue54911.go
new file mode 100644
index 0000000000..dee24da0bd
--- /dev/null
+++ b/test/fixedbugs/issue54911.go
@@ -0,0 +1,21 @@
+// compile
+
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+type Set[T comparable] map[T]struct{}
+
+func (s Set[T]) Add() Set[T] {
+	return s
+}
+
+func (s Set[T]) Copy() Set[T] {
+	return Set[T].Add(s)
+}
+
+func main() {
+	_ = Set[int]{42: {}}
+}