diff --git a/pungi/checks.py b/pungi/checks.py
index 7f8f434f..25a343fb 100644
--- a/pungi/checks.py
+++ b/pungi/checks.py
@@ -666,7 +666,11 @@ def make_schema():
             "pkgset_allow_reuse": {"type": "boolean", "default": True},
             "createiso_allow_reuse": {"type": "boolean", "default": True},
             "extraiso_allow_reuse": {"type": "boolean", "default": True},
-            "pkgset_source": {"type": "string", "enum": ["koji", "repos"]},
+            "pkgset_source": {"type": "string", "enum": [
+                "koji",
+                "repos",
+                "kojimock",
+            ]},
             "createrepo_c": {"type": "boolean", "default": True},
             "createrepo_checksum": {
                 "type": "string",