diff --git a/src/maps/maps.go b/src/maps/maps.go
index b712dd3fe8ebaa..746a5afda923fa 100644
--- a/src/maps/maps.go
+++ b/src/maps/maps.go
@@ -60,6 +60,9 @@ func Clone[M ~map[K]V, K comparable, V any](m M) M {
 // the value in dst will be overwritten by the value associated
 // with the key in src.
 func Copy[M1 ~map[K]V, M2 ~map[K]V, K comparable, V any](dst M1, src M2) {
+	if dst == nil {
+		dst = make(map[K]V)
+	}
 	for k, v := range src {
 		dst[k] = v
 	}
diff --git a/src/maps/maps_test.go b/src/maps/maps_test.go
index c8ee3cd0311f5f..c55f04fab2853c 100644
--- a/src/maps/maps_test.go
+++ b/src/maps/maps_test.go
@@ -121,6 +121,15 @@ func TestCopy(t *testing.T) {
 	Copy(make(M1), make(M2))
 }
 
+func TestCopyNil(t *testing.T) {
+	var mnil map[string]int
+	mc := Copy(mnil, m1)
+	want := m1
+	if !Equal(mc, want) {
+		t.Errorf("Copy result = %v, want %v", mc, want)
+	}
+}
+
 func TestDeleteFunc(t *testing.T) {
 	mc := Clone(m1)
 	DeleteFunc(mc, func(int, int) bool { return false })