diff --git a/data/json/connect_groups.json b/data/json/connect_groups.json
index ae38b23f784b1..f0f5af2dd3dcb 100644
--- a/data/json/connect_groups.json
+++ b/data/json/connect_groups.json
@@ -45,6 +45,10 @@
     "type": "connect_group",
     "id": "COUNTER"
   },
+  {
+    "type": "connect_group",
+    "id": "LIXATUBE"
+  },
   {
     "type": "connect_group",
     "id": "CANVAS_WALL"
diff --git a/data/json/furniture_and_terrain/LIXA_furniture_and_terrain.json b/data/json/furniture_and_terrain/LIXA_furniture_and_terrain.json
index 093e26c639f01..91ab17915d723 100644
--- a/data/json/furniture_and_terrain/LIXA_furniture_and_terrain.json
+++ b/data/json/furniture_and_terrain/LIXA_furniture_and_terrain.json
@@ -33,7 +33,8 @@
     "color": "light_gray",
     "move_cost": 3,
     "coverage": 50,
-    "connect_groups": "INDOORFLOOR",
+    "connect_groups": [ "INDOORFLOOR", "LIXATUBE" ],
+    "connects_to": "LIXATUBE",
     "flags": [ "TRANSPARENT", "MOUNTABLE", "PERMEABLE", "THIN_OBSTACLE", "MINEABLE", "UNSTABLE", "INDOORS" ],
     "bash": {
       "str_min": 30,
@@ -106,7 +107,8 @@
     "color": "light_gray",
     "move_cost": 3,
     "coverage": 50,
-    "connect_groups": "INDOORFLOOR",
+    "connect_groups": [ "INDOORFLOOR", "LIXATUBE" ],
+    "connects_to": "LIXATUBE",
     "flags": [ "TRANSPARENT", "MOUNTABLE", "PERMEABLE", "INDOORS", "THIN_OBSTACLE", "UNSTABLE", "MINEABLE" ],
     "bash": {
       "str_min": 7,
@@ -128,7 +130,8 @@
     "light_emitted": 120,
     "move_cost": 2,
     "coverage": 50,
-    "connect_groups": "INDOORFLOOR",
+    "connect_groups": [ "INDOORFLOOR", "LIXATUBE" ],
+    "connects_to": "LIXATUBE",
     "flags": [ "TRANSPARENT", "MOUNTABLE", "PERMEABLE", "INDOORS", "THIN_OBSTACLE", "UNSTABLE", "MINEABLE" ],
     "emissions": [ "emit_congealed_light" ]
   },
@@ -304,6 +307,8 @@
     "move_cost": 3,
     "roof": "t_metal_roof",
     "flags": [ "TRANSPARENT", "FLAMMABLE", "FLAT" ],
+    "connect_groups": [ "INDOORFLOOR", "LIXATUBE" ],
+    "connects_to": "LIXATUBE",
     "deconstruct": {
       "ter_set": "t_metal_floor",
       "items": [
diff --git a/src/mapdata.h b/src/mapdata.h
index f3ef0e1af8361..73c09b5c1dacc 100644
--- a/src/mapdata.h
+++ b/src/mapdata.h
@@ -33,7 +33,7 @@ struct itype;
 struct tripoint;
 
 // size of connect groups bitset; increase if needed
-const int NUM_TERCONN = 32;
+const int NUM_TERCONN = 256;
 connect_group get_connect_group( const std::string &name );
 
 template <typename E> struct enum_traits;