diff --git a/CHANGELOG.md b/CHANGELOG.md
index 17220813..53d7fc19 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Minor changes and fixes
 
 * #139: Fix colors in old fullpage mode (used for OBS integration for example).
+* Fix missing avatars in old fullpage mode (including OBS integration).
 
 ## 10.0.0
 
diff --git a/conversejs/custom/plugins/size/index.js b/conversejs/custom/plugins/size/index.js
index e2a6c5a2..3bb90cbd 100644
--- a/conversejs/custom/plugins/size/index.js
+++ b/conversejs/custom/plugins/size/index.js
@@ -31,6 +31,8 @@ function start () {
     stop()
   }
 
+  root.style.display = 'block' // this is needed, otherwise it won't have any width.
+
   rootResizeObserver.observe(root)
   handle(root)
 }