diff --git a/src/mondata.c b/src/mondata.c
index c54701f7c..c64112e27 100644
--- a/src/mondata.c
+++ b/src/mondata.c
@@ -309,6 +309,8 @@ struct permonst *ptr;
     switch (monsndx(ptr)) {
     case PM_HORNED_DEVIL:	/* ? "more than one" */
     case PM_MINOTAUR:
+    case PM_ASMODEUS:
+    case PM_BALROG:
 	return 2;
     case PM_WHITE_UNICORN:
     case PM_GRAY_UNICORN: