diff --git a/capsulflask/db_model.py b/capsulflask/db_model.py
index 826d25e..2d43cc5 100644
--- a/capsulflask/db_model.py
+++ b/capsulflask/db_model.py
@@ -223,7 +223,7 @@ class DBModel:
     return vm
 
   def clear_shortterm_flag(self, email):
-    self.cursor.execute("UPDATE vms SET shortterm = FALSE WHERE email = %s", (email))
+    self.cursor.execute("UPDATE vms SET shortterm = FALSE WHERE email = %s", (email,))
     self.connection.commit()