diff --git a/gui/lib/gui_resource.robot b/gui/lib/gui_resource.robot
index 3c69c37..40ad91b 100644
--- a/gui/lib/gui_resource.robot
+++ b/gui/lib/gui_resource.robot
@@ -66,7 +66,7 @@
     #          (e.g. gc for google chrome, ff for firefox).
 
     Start Virtual Display
-    ${browser_ID}=  Open Browser  ${URL}
+    ${browser_ID}=  Open Browser  ${URL}    ${browser}
     Set Window Size  1920  1080
 
     RETURN  ${browser_ID}