diff --git a/tools/make_libs_list.py b/tools/make_libs_list.py
old mode 100644
new mode 100755
index 8a5a488..cf76604
--- a/tools/make_libs_list.py
+++ b/tools/make_libs_list.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 
+import sys
 import json
 import click
 
@@ -9,7 +10,7 @@ __license__ = "Unlicense"
 
 
 @click.command()
-@click.option("--platform", default="win", help="Output platform (win, unix).")
+@click.option("--platform", default=sys.platform, help="Output platform (win32, linux, darwin).")
 @click.option("--output", default="tty", help="Output option (tty, txt).")
 def make_output(platform, output):
     """ Return libraries list """
@@ -17,7 +18,7 @@ def make_output(platform, output):
     libraries = parse_libs()
 
     # OS libs separate
-    _ = {"win": ";", "unix": ":"}
+    _ = {"win": ";", "linux": ":", "darwin": ":"}
 
     out_lib = str()
 
@@ -28,24 +29,24 @@ def make_output(platform, output):
     out_lib = out_lib + "$MC_DIR/versions/$GAME_VERSION/$GAME_VERSION.jar"
 
     # Replace for OS shell variable symbol
-    if platform == "win":
+    if platform == "win32":
         out_lib = out_lib.replace("$MC_DIR", "%MC_DIR%")
         out_lib = out_lib.replace("$GAME_VERSION", "%GAME_VERSION%")
 
     if output == "tty":
         click.echo(out_lib)
 
-        if platform == "win":
+        if platform == "win32":
             print("\nWindows generate libraries list complete!")
-        elif platform == "unix":
+        elif platform == "linux" or platform == "darwin":
             print("\nLinux generate libraries list complete!")
     elif output == "txt":
         with open("./libs.txt", "w", encoding="utf-8") as f:
             f.write(out_lib)
 
-        if platform == "win":
+        if platform == "win32":
             print("\nWindows generate libraries list complete!\n" "See libs.txt file.")
-        elif platform == "unix":
+        elif platform == "linux" or platform == "darwin":
             print("\nLinux generate libraries list complete!\n" "See libs.txt file.")