diff --git a/doc/fixes36.3 b/doc/fixes36.3
index bf9e7a39f..00745966a 100644
--- a/doc/fixes36.3
+++ b/doc/fixes36.3
@@ -1,4 +1,4 @@
-$NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.98 $ $NHDT-Date: 1564767725 2019/08/02 17:42:05 $
+$NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.99 $ $NHDT-Date: 1564771880 2019/08/02 18:51:20 $
 
 This fixes36.3 file is here to capture information about updates in the 3.6.x
 lineage following the release of 3.6.2 in May 2019. Please note, however,
@@ -112,6 +112,9 @@ if a chaotic monk or wizard gets crowned and is given a spellbook rather than
 	been "chosen to steal souls for [Arioch's] glory"
 for multi-shot shooting by monsters, a typo checked hero's weapon for
 	compatibility with ammo when monster was wielding an elven bow
+when a boulder was teleported, if it landed in a pit or trap door or hole its
+	former location wasn't updated to show that it wasn't there anymore
+	(noticed in Sokoban but not limited to there)
 
 
 Fixes to Post-3.6.2 Problems that Were Exposed Via git Repository
diff --git a/src/teleport.c b/src/teleport.c
index 100a74d3b..9c2bd66f5 100644
--- a/src/teleport.c
+++ b/src/teleport.c
@@ -1,4 +1,4 @@
-/* NetHack 3.6	teleport.c	$NHDT-Date: 1561336020 2019/06/24 00:27:00 $  $NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.89 $ */
+/* NetHack 3.6	teleport.c	$NHDT-Date: 1564771880 2019/08/02 18:51:20 $  $NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.92 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /*-Copyright (c) Robert Patrick Rankin, 2011. */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -1450,6 +1450,9 @@ register struct obj *obj;
                                            dndest.nhx, dndest.nhy)));
 
     if (flooreffects(obj, tx, ty, "fall")) {
+        /* update old location since flooreffects() couldn't;
+           unblock_point() for boulder handled by obj_extract_self() */
+        newsym(otx, oty);
         return FALSE;
     } else if (otx == 0 && oty == 0) {
         ; /* fell through a trap door; no update of old loc needed */
@@ -1466,6 +1469,7 @@ register struct obj *obj;
         newsym(otx, oty); /* update old location */
     }
     place_object(obj, tx, ty);
+    /* note: block_point() for boulder handled by place_object() */
     newsym(tx, ty);
     return TRUE;
 }