diff --git a/rooms_get.py b/rooms_get.py
index 22520cc..63af337 100644
--- a/rooms_get.py
+++ b/rooms_get.py
@@ -80,7 +80,7 @@ def used_rooms_get(datet) :
            ev_dend = comp.decoded("dtend")
            roomname = str(comp.get("location"))
            if not roomname in total_rooms:
-            total_rooms.append(roomname)
+               total_rooms.append(roomname)
            if ev_dstart.timestamp() <= datet.timestamp() and ev_dend.timestamp() > datet.timestamp() :
                if not roomname in used_rooms :
                    used_rooms.append(roomname)