diff --git a/src/mhitm.c b/src/mhitm.c
index 33d8af026..17e55bdcd 100644
--- a/src/mhitm.c
+++ b/src/mhitm.c
@@ -454,6 +454,8 @@ mattackm(
                             pline("%s divides as %s hits it!",
                                   Monnam(mdef), mon_nam(magr));
                         (void) mintrap(mclone, NO_TRAP_FLAGS);
+                        if (DEADMONSTER(magr))
+                            res[i] |= M_ATTK_AGR_DIED;
                     }
                 }
             } else
diff --git a/src/monmove.c b/src/monmove.c
index be38cf48d..c46494702 100644
--- a/src/monmove.c
+++ b/src/monmove.c
@@ -1892,7 +1892,7 @@ m_move_aggress(struct monst *mtmp, coordxy x, coordxy y)
         mstatus = mattackm(mtmp, mtmp2);
     }
 
-    if (mstatus & M_ATTK_AGR_DIED) /* aggressor died */
+    if ((mstatus & M_ATTK_AGR_DIED) || DEADMONSTER(mtmp)) /* aggressor died */
         return MMOVE_DIED;
 
     if ((mstatus & (M_ATTK_HIT | M_ATTK_DEF_DIED)) == M_ATTK_HIT