diff --git a/snamellit/common.scm b/snamellit/common.scm
index 95d7fb5..82ab1bd 100644
--- a/snamellit/common.scm
+++ b/snamellit/common.scm
@@ -229,7 +229,7 @@
                         (list
                          "eval \"$(direnv hook bash)\""
                          "eval \"$(atuin init bash)\""
-			 "if \"$ALACRITTY_WINDOW_ID\" != \"\"; then tmux; fi"
+			 "if [[ \"$ALACRITTY_WINDOW_ID\" != \"\" ]]; then tmux; fi"
                          )))))))
    (simple-service 'variant-packages-service
                    home-channels-service-type