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-rw-r--r--crawl-ref/source/monplace.cc5
1 files changed, 3 insertions, 2 deletions
diff --git a/crawl-ref/source/monplace.cc b/crawl-ref/source/monplace.cc
index df14577fe7..536ffb52cb 100644
--- a/crawl-ref/source/monplace.cc
+++ b/crawl-ref/source/monplace.cc
@@ -1687,8 +1687,9 @@ bool empty_surrounds(int emx, int emy, unsigned char spc_wanted,
if (mgrd[tx][ty] != NON_MONSTER)
continue;
- // players won't summon out of LOS
- if (!see_grid(tx, ty) && playerSummon)
+ // players won't summon out of LOS, or past transparent
+ // walls.
+ if (!see_grid_no_trans(tx, ty) && playerSummon)
continue;
if (grd[tx][ty] == spc_wanted)