diff --git a/src/ansibleguy-webui/aw/api_endpoints/job.py b/src/ansibleguy-webui/aw/api_endpoints/job.py
index f2fa3c5..a6210bb 100644
--- a/src/ansibleguy-webui/aw/api_endpoints/job.py
+++ b/src/ansibleguy-webui/aw/api_endpoints/job.py
@@ -37,7 +37,7 @@ def validate(self, attrs: dict):
                 validate_no_xss(value=attrs[field], field=field)
 
         for prompt_field in ['execution_prompts_required', 'execution_prompts_optional']:
-            if is_set(attrs[prompt_field]):
+            if prompt_field in attrs and is_set(attrs[prompt_field]):
                 if regex_match(Job.execution_prompts_regex, attrs[prompt_field]) is None:
                     raise ValidationError('Invalid execution prompt pattern')