diff --git a/duckyinpython.py b/duckyinpython.py
index e4a4562..d43a620 100644
--- a/duckyinpython.py
+++ b/duckyinpython.py
@@ -30,6 +30,15 @@ from adafruit_hid.keycode import Keycode
 #from keyboard_layout_win_LANG import KeyboardLayout as KeyboardLayout
 #from keycode_win_LANG import Keycode
 
+def _capsOn():
+    return kbd.led_on(Keyboard.LED_CAPS_LOCK)
+
+def _numOn():
+    return kbd.led_on(Keyboard.LED_NUM_LOCK)
+
+def _scrollOn():
+    return kbd.led_on(Keyboard.LED_SCROLL_LOCK)
+
 duckyKeys = {
     'WINDOWS': Keycode.GUI, 'RWINDOWS': Keycode.RIGHT_GUI, 'GUI': Keycode.GUI, 'RGUI': Keycode.RIGHT_GUI, 'COMMAND': Keycode.GUI, 'RCOMMAND': Keycode.RIGHT_GUI,
     'APP': Keycode.APPLICATION, 'MENU': Keycode.APPLICATION, 'SHIFT': Keycode.SHIFT, 'RSHIFT': Keycode.RIGHT_SHIFT,
@@ -63,6 +72,7 @@ duckyConsumerKeys = {
 }
 
 variables = {"$_RANDOM_MIN": 0, "$_RANDOM_MAX": 65535}
+internalVariables = {"$_CAPSLOCK_ON": _capsOn, "$_NUMLOCK_ON": _numOn, "$_SCROLLLOCK_ON": _scrollOn}
 defines = {}
 functions = {}
 
@@ -219,6 +229,8 @@ def sendString(line):
 def replaceVariables(line):
     for var in variables:
         line = line.replace(var, str(variables[var]))
+    for var in internalVariables:
+        line = line.replace(var, str(internalVariables[var]()))
     return line
 
 def replaceDefines(line):