diff --git a/library/xml b/library/xml
index eb6f706d7..3663b22e2 160000
--- a/library/xml
+++ b/library/xml
@@ -1 +1 @@
-Subproject commit eb6f706d702367ea3121272670e603000bbdd42a
+Subproject commit 3663b22e25a6772b9f2765caaff81914c131c1cc
diff --git a/plugins/autodump.cpp b/plugins/autodump.cpp
index 536b2501b..cfb73fa8b 100644
--- a/plugins/autodump.cpp
+++ b/plugins/autodump.cpp
@@ -140,7 +140,7 @@ static command_result autodump_main(color_ostream &out, vector <string> & parame
                 return CR_FAILURE;
             }
             df::tiletype ttype = MC.tiletypeAt(pos_cursor);
-            if(!DFHack::isFloorTerrain(ttype))
+            if(!DFHack::isWalkable(ttype) || DFHack::isOpenTerrain(ttype))
             {
                 out.printerr("Cursor should be placed over a floor.\n");
                 return CR_FAILURE;