diff --git a/src/_posts/2019-08-30-civicrm-mailing-validation.md b/src/_posts/2019-08-30-civicrm-mailing-validation.md
index 853ab05..e6d9753 100644
--- a/src/_posts/2019-08-30-civicrm-mailing-validation.md
+++ b/src/_posts/2019-08-30-civicrm-mailing-validation.md
@@ -113,7 +113,7 @@ Now, open a mailing and try to give it the same name as an existing one – you
 should see the field border turn red, and you'll be prevented from continuing or
 sending the mailing:
 
-![](/assets/images/civicrm_validation.png)
+!["Mailing name" field showing the field with a red border and red label](/assets/images/2019-08-30_civicrm_validation.png)
 
 (As a bonus, the extension also sends a notification to the user using
 `CRM.alert` to explain the error)
diff --git a/src/assets/images/civicrm_validation.png b/src/assets/images/2019-08-30_civicrm_validation.png
similarity index 100%
rename from src/assets/images/civicrm_validation.png
rename to src/assets/images/2019-08-30_civicrm_validation.png
diff --git a/src/assets/images/civicrm_validation_header.jpg b/src/assets/images/2019-08-30_civicrm_validation_header.jpg
similarity index 100%
rename from src/assets/images/civicrm_validation_header.jpg
rename to src/assets/images/2019-08-30_civicrm_validation_header.jpg