diff --git a/package-lock.json b/package-lock.json
index 96ea88cf2..ee267b28e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,7 +6,7 @@
   "packages": {
     "": {
       "name": "cytoscape",
-      "version": "3.30.0-unstable",
+      "version": "3.31.0-unstable",
       "license": "MIT",
       "devDependencies": {
         "@babel/core": "^7.3.4",
diff --git a/src/extensions/layout/breadthfirst.js b/src/extensions/layout/breadthfirst.js
index eeaa2e01d..565a4a6a1 100644
--- a/src/extensions/layout/breadthfirst.js
+++ b/src/extensions/layout/breadthfirst.js
@@ -48,8 +48,9 @@ BreadthFirstLayout.prototype.run = function(){
   const maximal = options.acyclic || options.maximal || options.maximalAdjustments > 0; // maximalAdjustments for compat. w/ old code; also, setting acyclic to true sets maximal to true
 
   const hasBoundingBox = !!options.boundingBox;
+  const cyExtent = cy.extent();
   const bb = math.makeBoundingBox( hasBoundingBox ? options.boundingBox : {
-    x1: 0, y1: 0, w: cy.width(), h: cy.height()
+    x1: cyExtent.x1, y1: cyExtent.y1, w: cyExtent.w, h: cyExtent.h
   } );
 
   let roots;