diff --git a/docs/arista.eos.eos_config_module.rst b/docs/arista.eos.eos_config_module.rst
index 83e4d737f..39285b781 100644
--- a/docs/arista.eos.eos_config_module.rst
+++ b/docs/arista.eos.eos_config_module.rst
@@ -516,7 +516,7 @@ Common return values are documented `here <https://docs.ansible.com/ansible/late
                       <span style="color: purple">string</span>
                     </div>
                 </td>
-                <td></td>
+                <td>when user opt for off-box-diff through context_diff option.</td>
                 <td>
                             <div>The diff between candidate and target config.</div>
                     <br/>
diff --git a/plugins/modules/eos_config.py b/plugins/modules/eos_config.py
index 97dd1f710..5377db5c5 100644
--- a/plugins/modules/eos_config.py
+++ b/plugins/modules/eos_config.py
@@ -332,6 +332,7 @@
   sample: "22:28:34"
 context_diff:
   description: The diff between candidate and target config.
+  returned: when user opt for off-box-diff through context_diff option.
   type: str
   sample: '''
     ---