diff --git a/scenarios/examples/auto_grading/experiment_aaa.xml b/scenarios/examples/auto_grading/experiment_aaa.xml
index 0c8aa9f3f..e3c7223fd 100644
--- a/scenarios/examples/auto_grading/experiment_aaa.xml
+++ b/scenarios/examples/auto_grading/experiment_aaa.xml
@@ -124,14 +124,14 @@
 
     <vulnerability module_path="vulnerabilities/unix/misc/distcc_exec"/>
     <vulnerability module_path="vulnerabilities/unix/access_control_misconfigurations/readable_shadow"/>
-<!--    <vulnerability module_path=".*/hidden_file">-->
-<!--      <input into="account">-->
-<!--        <datastore access="0">account</datastore>-->
-<!--      </input>-->
-<!--      <input into="strings_to_leak">-->
-<!--        <generator type="message_generator"/>-->
-<!--      </input>-->
-<!--    </vulnerability>-->
+    <vulnerability module_path=".*/hidden_file">
+      <input into="account">
+        <datastore access="0">account</datastore>
+      </input>
+      <input into="strings_to_leak">
+        <generator type="message_generator"/>
+      </input>
+    </vulnerability>
 
     <network type="private_network">
       <input into="IP_address">
diff --git a/scenarios/tests/test_scenario.xml b/scenarios/tests/test_scenario.xml
index 56d990238..7ecb78760 100644
--- a/scenarios/tests/test_scenario.xml
+++ b/scenarios/tests/test_scenario.xml
@@ -37,5 +37,16 @@
         </generator>
       </input>
     </utility>
+
+    <vulnerability module_path="vulnerabilities/unix/misc/distcc_exec"/>
+    <vulnerability module_path="vulnerabilities/unix/access_control_misconfigurations/readable_shadow"/>
+    <vulnerability module_path=".*/hidden_file">
+      <input into="account">
+        <datastore access="0">account</datastore>
+      </input>
+      <input into="strings_to_leak">
+        <generator type="message_generator"/>
+      </input>
+    </vulnerability>
   </system>
 </scenario>
\ No newline at end of file