diff --git a/jarvis_core/db/models/modlog.py b/jarvis_core/db/models/modlog.py
index f0593e5..6c251be 100644
--- a/jarvis_core/db/models/modlog.py
+++ b/jarvis_core/db/models/modlog.py
@@ -8,6 +8,8 @@ from umongo import Document, EmbeddedDocument, fields
 
 from jarvis_core.db import JARVIS_INST
 
+NANOID_ALPHA = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+
 
 def get_now() -> datetime:
     """Get proper timestamp."""
@@ -16,7 +18,7 @@ def get_now() -> datetime:
 
 def get_id() -> str:
     """Get nanoid."""
-    return nanoid.generate(size=16)
+    return nanoid.generate(NANOID_ALPHA, 12)
 
 
 @JARVIS_INST.register