diff --git a/Basic-use-cases.md b/Basic-use-cases.md
index 0f078ce..a5f1c10 100644
--- a/Basic-use-cases.md
+++ b/Basic-use-cases.md
@@ -162,12 +162,12 @@ Set up a script (say `ewrap`) to open the editor in a new `tmux` split-pane or a
 ```sh
 #!/usr/bin/env sh
 
-if ! { [ "$TERM" = "screen" ] && [ -n "$TMUX" ]; } then
-    # Remove option --tab for new window
-    xfce4-terminal --tab -e "vim \"$*\""
-else
+if [ -n "$TMUX" ] ; then
     # tmux session running
     tmux split-window -h "vim \"$*\""
+else
+    # Remove option --tab for new window
+    xfce4-terminal --tab -e "vim \"$*\""
 fi
 ```