diff --git a/systemvm/agent/noVNC/app/styles/base.css b/systemvm/agent/noVNC/app/styles/base.css
index fd78b79c772..c0e99b84003 100644
--- a/systemvm/agent/noVNC/app/styles/base.css
+++ b/systemvm/agent/noVNC/app/styles/base.css
@@ -672,6 +672,10 @@ select:active {
   max-width: 100%;
 }
 
+:root:not(.noVNC_connected) #noVNC_fullscreen_button {
+  display: none;
+}
+
 /* Settings */
 #noVNC_settings {
 }