diff --git a/crates/swc_ecma_minifier/tests/fixture/pr/6169/2/input.js b/crates/swc_ecma_minifier/tests/fixture/pr/6169/2/input.js
new file mode 100644
index 000000000000..389ddef17ae0
--- /dev/null
+++ b/crates/swc_ecma_minifier/tests/fixture/pr/6169/2/input.js
@@ -0,0 +1,8 @@
+var ref = [
+    , {
+        toUpperCase() {
+            console.log(this)
+        }
+    }
+], key = ref[0], value = ref[1];
+value.toUpperCase();
diff --git a/crates/swc_ecma_minifier/tests/fixture/pr/6169/2/output.js b/crates/swc_ecma_minifier/tests/fixture/pr/6169/2/output.js
new file mode 100644
index 000000000000..e4adab9b1b78
--- /dev/null
+++ b/crates/swc_ecma_minifier/tests/fixture/pr/6169/2/output.js
@@ -0,0 +1,9 @@
+var ref = [
+    ,
+    {
+        toUpperCase () {
+            console.log(this);
+        }
+    }
+];
+(ref[0], ref[1]).toUpperCase();