diff --git a/README.md b/README.md
index c3da9a9..416515d 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ From people using z.lua:
 - Integrated with FZF (optional) for interactive selection and completion.
 - Quickly go back to a parent directory instead of typing "cd ../../..".
 - Corresponding experience in different shells and operating systems. 
-- Compatible with Lua 5.1, 5.2 and 5.3+
+- Compatible with Lua (5.1, 5.2, 5.3+) and luajit.
 - Self contained, distributed as a single `z.lua` script, no other dependence.
 
 
diff --git a/init.fish b/init.fish
index 788054b..cb2f5ad 100644
--- a/init.fish
+++ b/init.fish
@@ -27,6 +27,8 @@ end
 if test -e $_zlua_dir/z.lua 
 	if type -q lua
 		lua $_zlua_dir/z.lua --init fish enhanced once echo | source
+	else if type -q luajit
+		luajit $_zlua_dir/z.lua --init fish enhanced once echo | source
 	else if type -q lua5.3
 		lua5.3 $_zlua_dir/z.lua --init fish enhanced once echo | source
 	else if type -q lua5.2
diff --git a/z.lua.plugin.zsh b/z.lua.plugin.zsh
index b929459..971fa72 100644
--- a/z.lua.plugin.zsh
+++ b/z.lua.plugin.zsh
@@ -2,11 +2,14 @@
 
 ZLUA_SCRIPT="${0:A:h}/z.lua"
 
-[[ -n "$ZLUA_EXEC" ]] && [[ ! -x "$ZLUA_EXEC" ]] && ZLUA_EXEC=""
+if [[ -n "$ZLUA_EXEC" ]] && ! which "$ZLUA_EXEC" &>/dev/null; then
+    echo "$ZLUA_EXEC not found"
+    ZLUA_EXEC=""
+fi
 
 # search lua executable
 if [[ -z "$ZLUA_EXEC" ]]; then
-	for lua in lua lua5.3 lua5.2 lua5.1; do
+	for lua in lua luajit lua5.3 lua5.2 lua5.1; do
 		ZLUA_EXEC="$(command -v "$lua")"
 		[[ -n "$ZLUA_EXEC" ]] && break
 	done