diff --git a/tests/format/typescript/comments/16207.ts b/tests/format/typescript/comments/16207.ts
new file mode 100644
index 000000000..6f9cf060a
--- /dev/null
+++ b/tests/format/typescript/comments/16207.ts
@@ -0,0 +1,7 @@
+class Foo {
+  constructor(
+    @required
+    // comment
+    protected readonly myParam: string,
+  ) {}
+}
diff --git a/tests/format/typescript/comments/__snapshots__/format.test.js.snap b/tests/format/typescript/comments/__snapshots__/format.test.js.snap
index 032a0e5d5..21c8d1680 100644
--- a/tests/format/typescript/comments/__snapshots__/format.test.js.snap
+++ b/tests/format/typescript/comments/__snapshots__/format.test.js.snap
@@ -222,6 +222,32 @@ class Foo {
 ================================================================================
 `;
 
+exports[`16207.ts format 1`] = `
+====================================options=====================================
+parsers: ["typescript"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class Foo {
+  constructor(
+    @required
+    // comment
+    protected readonly myParam: string,
+  ) {}
+}
+
+=====================================output=====================================
+class Foo {
+  constructor(
+    @required
+    // comment
+    protected readonly myParam: string,
+  ) {}
+}
+
+================================================================================
+`;
+
 exports[`abstract_class.ts format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]