diff --git a/hub/publishing-guide.mdx b/hub/publishing-guide.mdx
index dc728b71..1fb06776 100644
--- a/hub/publishing-guide.mdx
+++ b/hub/publishing-guide.mdx
@@ -111,6 +111,7 @@ Environment variables can be defined in several ways:
         "name": "Hugging Face Model",
         "description": "Model organization/name as listed on Huggingface Hub",
         "default": "runwayml/stable-diffusion-v1-5",
+        "required": true
       }
     }
     ```
@@ -383,4 +384,4 @@ To participate in the revenue sharing program, you must:
 
 ### Payment timing
 
-Credits are deposited into your Runpod account balance during the first week of each month. Revenue is calculated based on the previous month's activity.
\ No newline at end of file
+Credits are deposited into your Runpod account balance during the first week of each month. Revenue is calculated based on the previous month's activity.