diff --git a/src/pamhyr.py b/src/pamhyr.py
index 19a88577..a8fbbc20 100755
--- a/src/pamhyr.py
+++ b/src/pamhyr.py
@@ -41,17 +41,20 @@ from init import license, setup_lang
 logger = logging.getLogger()
 
 scripts = {
-    "gui" : None,
     "hello": ScriptHello,
 }
 
 def usage(argv):
-    logger.error(f"{logger_color_red()}Invalid script name '{argv[1]}'{logger_color_reset()}")
+    logger.info("")
     logger.info(f"Usage: {argv[0]} <script> <args...>")
-    logger.info(f"")
-    logger.info(f"Valid scripts:")
+    logger.info("")
+    logger.info(f"Available scripts:")
+    logger.info(f"\thelp\t\tDisplay this help")
+    logger.info(f"\tgui\t\tRun Pamhyr graphics user interface (by default)")
+    logger.info(f"\tdebug\t\tRun Pamhyr graphics user interface as debug mode")
     for s in scripts:
-        logger.info(f"\t{s}\t\t{scripts[s].name}: {scripts[s].description}")
+        logger.info(f"\t{s}\t\t{scripts[s].description}")
+    logger.info("")
 
 def gui(app:QApplication, conf:Config):
     application = ApplicationWindow(conf=conf)
@@ -72,10 +75,16 @@ def main():
         # Run a script
         script = sys.argv[1]
 
-        if script == "gui":
+        if script == "help":
+            ret = usage(sys.argv)
+        elif script == "gui":
+            ret = gui(app, conf)
+        elif script == "debug":
+            conf.debug = True
             ret = gui(app, conf)
         else:
             if script not in scripts:
+                logger.error(f"{logger_color_red()}Invalid script name '{sys.argv[1]}'{logger_color_reset()}")
                 usage(sys.argv)
                 sys.exit(-1)