diff --git a/ddimport.js b/ddimport.js
index b54b4e1..05e72d0 100644
--- a/ddimport.js
+++ b/ddimport.js
@@ -105,6 +105,7 @@ class DDImporter {
       if (ddWalls.loop){
         points = points.concat(points.slice(0,2))
       }
+      let currentwalls = [];
       for(let i = 0; i < points.length-3; i+=2)
       {
         allwalls.push([[points[i], points[i+1]], [points[i+2], points[i+3]]])
@@ -116,8 +117,8 @@ class DDImporter {
         let portalPoint2 = [portalCenterPoint[0] - portal.radius*portalDirection[0], portalCenterPoint[1] - portal.radius*portalDirection[1]] ;
         alldoors.push([portalPoint1, portalPoint2])
         let allwalls_new = []
-        for (let lineindex = 0; lineindex < allwalls.length; lineindex+=1){
-          let line = allwalls[lineindex]
+        for (let lineindex = 0; lineindex < acurrentwallsllwalls.length; lineindex+=1){
+          let line = acurrentwallsllwalls[lineindex]
           if (this.pointIsOnLine(portalCenterPoint,line)){
             let endpoint1 = this.getNearerPoint(line[0], [portalPoint1, portalPoint2])
             let endpoint2 = this.getNearerPoint(line[1], [portalPoint1, portalPoint2])
@@ -132,8 +133,9 @@ class DDImporter {
             allwalls_new.push(line)
           }
         }
-        allwalls = allwalls_new
+        acurrentwallsllwalls = allwalls_new
       }
+      allwalls = allwalls.concat(currentwalls)
     }
 
     for (let w of allwalls){
diff --git a/module.json b/module.json
index 58be27e..7284bcf 100644
--- a/module.json
+++ b/module.json
@@ -2,7 +2,7 @@
   "name": "dd-import",
   "title": "DungeonDraft Importer",
   "description": "Imports scene elements from Dungeon Draft map files",
-  "version": "0.4.19",
+  "version": "0.4.20",
   "authors": [
     {
       "name": "Moo Man"