diff --git a/docs/rules/no-param-reassign.md b/docs/rules/no-param-reassign.md
index 2ee312c2b81..47a7af3cbe9 100644
--- a/docs/rules/no-param-reassign.md
+++ b/docs/rules/no-param-reassign.md
@@ -129,17 +129,25 @@ Examples of **correct** code for the `{ "props": true }` option with `"ignorePro
 ```js
 /*eslint no-param-reassign: ["error", { "props": true, "ignorePropertyModificationsForRegex": ["^bar"] }]*/
 
-function foo(bar) {
+function foo(barVar) {
     barVar.prop = "value";
 }
 
-function foo(bar) {
+function foo(barrito) {
     delete barrito.aaa;
 }
 
-function foo(bar) {
+function foo(bar_) {
     bar_.aaa++;
 }
+
+function foo(barBaz) {
+    for (barBaz.aaa in baz) {}
+}
+
+function foo(barBaz) {
+    for (barBaz.aaa of baz) {}
+}
 ```
 
 
diff --git a/tests/lib/rules/no-param-reassign.js b/tests/lib/rules/no-param-reassign.js
index 5bb70e6aa4c..6985cabb856 100644
--- a/tests/lib/rules/no-param-reassign.js
+++ b/tests/lib/rules/no-param-reassign.js
@@ -91,6 +91,14 @@ ruleTester.run("no-param-reassign", rule, {
             code: "function foo(a) { for (bar of baz) a.b; }",
             options: [{ props: true }],
             parserOptions: { ecmaVersion: 6 }
+        },
+        {
+            code: "function foo(bar, baz) { bar.a = true; baz.b = false; }",
+            options: [{
+                props: true,
+                ignorePropertyModificationsForRegex: ["^(foo|bar)$"],
+                ignorePropertyModificationsFor: ["baz"]
+            }]
         }
     ],