diff --git a/src/modules/rooms/cog.py b/src/modules/rooms/cog.py
index 9adc4f91..e4543cbd 100644
--- a/src/modules/rooms/cog.py
+++ b/src/modules/rooms/cog.py
@@ -412,7 +412,7 @@ class RoomCog(LionCog):
                             t(_p(
                                 'cmd:room_rent|error:member_not_found',
                                 "Could not find the requested member {mention} in this server!"
-                            )).format(member=f"<@{mid}>")
+                            )).format(mention=f"<@{mid}>")
                         ), ephemeral=True
                     )
                     return