Typefixes

Change-Id: I8097deff4ec4073b14a49173c85e615d3035cf97
diff --git a/room/death/death_room.c b/room/death/death_room.c
index 21e11ca..5669267 100644
--- a/room/death/death_room.c
+++ b/room/death/death_room.c
@@ -405,7 +405,7 @@
         kill_ob = prev; // killendes Objekt
     }
 
-    object pre = (object) pl->QueryProp(P_KILLER);
+    string|object pre = pl->QueryProp(P_KILLER);
     if ( objectp(pre) ) {
         dseq = pre->QueryProp(P_ENEMY_DEATH_SEQUENCE);