diff --git a/awx/main/conf.py b/awx/main/conf.py
index 8d9ea54fa8..4d6921d35d 100644
--- a/awx/main/conf.py
+++ b/awx/main/conf.py
@@ -1117,3 +1117,11 @@ if settings.FEATURE_POLICY_AS_CODE_ENABLED:  # Unable to use flag_enabled due to
         category=('PolicyAsCode'),
         category_slug='policyascode',
     )
+
+    def policy_as_code_validate(serializer, attrs):
+        opa_host = attrs.get('OPA_HOST', '')
+        if opa_host and (opa_host.startswith('http://') or opa_host.startswith('https://')):
+            raise serializers.ValidationError({'OPA_HOST': _("OPA_HOST should not include 'http://' or 'https://' prefixes. Please enter only the hostname.")})
+        return attrs
+
+    register_validate('policyascode', policy_as_code_validate)