diff --git a/docs.it4i/general/accessing-the-clusters/graphical-user-interface/x-window-system.md b/docs.it4i/general/accessing-the-clusters/graphical-user-interface/x-window-system.md
index 8fc72fe3259107c67bfa4a2ad17e0822ea2febd1..1f87d62a5dfca725eab102db7c9cfbc0b5958866 100644
--- a/docs.it4i/general/accessing-the-clusters/graphical-user-interface/x-window-system.md
+++ b/docs.it4i/general/accessing-the-clusters/graphical-user-interface/x-window-system.md
@@ -32,7 +32,7 @@ In order to display graphical user interface GUI of various software tools, you
 ```
 
 !!! tip
-    If getting error message "cannot open display" then try to export DISPLAY variable before attempt to log in:
+    If you are getting error message "cannot open display", then try to export DISPLAY variable, before attempting to log in:
 
 ```console
  local $ export DISPLAY=localhost:0.0