diff --git a/modules/utility/init.zsh b/modules/utility/init.zsh
index caa0ec8d41b..bf943c0c6b4 100644
--- a/modules/utility/init.zsh
+++ b/modules/utility/init.zsh
@@ -118,7 +118,9 @@ alias ll='ls -lh'        # Lists human readable sizes.
 alias lr='ll -R'         # Lists human readable sizes, recursively.
 alias la='ll -A'         # Lists human readable sizes, hidden files.
 alias lm='la | "$PAGER"' # Lists human readable sizes, hidden files through pager.
-alias lx='ll -XB'        # Lists sorted by extension (GNU only).
+if [[ "$OSTYPE" != darwin* ]]; then
+  alias lx='ll -XB'        # Lists sorted by extension (GNU only).
+fi
 alias lk='ll -Sr'        # Lists sorted by size, largest last.
 alias lt='ll -tr'        # Lists sorted by date, most recent last.
 alias lc='lt -c'         # Lists sorted by date, most recent last, shows change time.