diff --git a/app/deps.py b/app/deps.py
index 74ecf16..722ecdd 100644
--- a/app/deps.py
+++ b/app/deps.py
@@ -391,7 +391,7 @@ def require_active_plugin(plugin_name: str):
             from sqlalchemy import text as sa_text
 
             result = await db.execute(
-                sa_text("SELECT current_setting('app.current_tenant_id', true)::uuid")
+                sa_text("SELECT NULLIF(current_setting('app.current_tenant_id', true), '')::uuid")
             )
             tenant_id = result.scalar()