diff --git a/README.md b/README.md
index 0dcda86..460b240 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ installation may refer to the below table.
 | ------------- | ---------------- |
 | 0.33.x        | 0.6.0            |
 | 0.34.x        | 0.6.1-0.6.2      |
-| 0.35.x        | 0.6.3-0.7.1      |
+| 0.35.x        | 0.6.3-0.7.2      |
 
 ## Developing the Jupyterlab extension
 
diff --git a/package.json b/package.json
index 759d4b7..4de09cd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@pyviz/jupyterlab_pyviz",
-  "version": "0.7.1",
+  "version": "0.7.2",
   "description": "A JupyterLab extension for rendering PyViz content",
   "author": "Philipp Rudiger <prudiger@anaconda.org>",
   "main": "lib/index.js",
diff --git a/src/renderer.ts b/src/renderer.ts
index 389ce74..42ef2ee 100644
--- a/src/renderer.ts
+++ b/src/renderer.ts
@@ -123,9 +123,8 @@ class HVJSExec extends Widget implements IRenderMime.IRenderer {
     }
     this._dispose = true;
     if (id !== undefined) {
-      // I'm a static document
       if ((window as any).PyViz === undefined) {
-        (window as any).PyViz = {kernels: {}, plot_index: {}};
+        (window as any).PyViz = {comms: {}, comm_status:{}, kernels:{}, receivers: {}, plot_index: []};
       } else if ((window as any).PyViz.plot_index === undefined) {
         (window as any).PyViz.plot_index = {}
       }