diff --git a/src/go/types/fixedbugs/issue39634.go2 b/src/go/types/fixedbugs/issue39634.go2
index b4f6cbed80..0de085ee06 100644
--- a/src/go/types/fixedbugs/issue39634.go2
+++ b/src/go/types/fixedbugs/issue39634.go2
@@ -30,6 +30,10 @@ type foo8(type A) interface { type A }
 func bar8(type A foo8(A))(a A) {}
 func main8() {}
 
+// crash 9
+type foo9(type A) interface { type foo9(A) }
+func _() { var _ = new(foo9(int)) }
+
 // crash 12
 var u /* ERROR cycle */ , i [func /* ERROR used as value */ /* ERROR used as value */ (u, c /* ERROR undeclared */ /* ERROR undeclared */ ) {}(0, len)]c /* ERROR undeclared */ /* ERROR undeclared */