diff --git a/test/cases/inner-graph/extend-class/a.js b/test/cases/inner-graph/extend-class/a.js
new file mode 100644
index 00000000000..9caf04da882
--- /dev/null
+++ b/test/cases/inner-graph/extend-class/a.js
@@ -0,0 +1,12 @@
+import B from "./b.js";
+
+export default class A extends B {
+	constructor() {
+		super();
+	}
+	test() {
+		super.test();
+
+		this.b = new B();
+	}
+}
diff --git a/test/cases/inner-graph/extend-class/b.js b/test/cases/inner-graph/extend-class/b.js
new file mode 100644
index 00000000000..4cd6d1e555d
--- /dev/null
+++ b/test/cases/inner-graph/extend-class/b.js
@@ -0,0 +1,8 @@
+import A from "./a.js";
+
+export default class B {
+	constructor() {}
+	test() {
+		this.a = new A();
+	}
+}
diff --git a/test/cases/inner-graph/extend-class/index.js b/test/cases/inner-graph/extend-class/index.js
index 0334352c828..20c6f6803b3 100644
--- a/test/cases/inner-graph/extend-class/index.js
+++ b/test/cases/inner-graph/extend-class/index.js
@@ -13,6 +13,7 @@ import {
 it("should load modules correctly", () => {
 	require("./module1");
 	require("./module2");
+	require("./module3");
 });
 
 if (process.env.NODE_ENV === "production") {
diff --git a/test/cases/inner-graph/extend-class/module3.js b/test/cases/inner-graph/extend-class/module3.js
new file mode 100644
index 00000000000..7a1f7dc8856
--- /dev/null
+++ b/test/cases/inner-graph/extend-class/module3.js
@@ -0,0 +1,3 @@
+import A from "./a.js";
+let a = new A();
+a.test();