diff --git a/C64_keyboard/C64_joystick.sc b/C64_keyboard/C64_joystick.sc
index c85459b..49decd0 100644
--- a/C64_keyboard/C64_joystick.sc
+++ b/C64_keyboard/C64_joystick.sc
@@ -5,17 +5,17 @@ matrix
 	debounce 5
 	blocking 1
 
-	# Joystick 1
-	unstrobed -PD1 PAD_8 #pin2
-	unstrobed -PD0 PAD_2 #pin3
-	unstrobed -PD4 PAD_4 #pin4
-	unstrobed -PC6 PAD_6 #pin5
-	unstrobed -PD7 PAD_0 #pin6
+	# Joystick 1 (Joystick GND to Arduino GND)
+	unstrobed -PD1 PAD_8 #pin_2
+	unstrobed -PD0 PAD_2 #pin_3
+	unstrobed -PD4 PAD_4 #pin_4
+	unstrobed -PC6 PAD_6 #pin_5
+	unstrobed -PD7 PAD_0 #pin_6
 
-	# Joystick 2
-	unstrobed -PF4 PAD_SLASH #pinA3
-	unstrobed -PF5 PAD_ASTERIX #pinA2
-	unstrobed -PF6 PAD_MINUS #pinA1
-	unstrobed -PF7 PAD_PLUS #pinA0
-	unstrobed -PB1 SCROLL_LOCK #pin15
-end
\ No newline at end of file
+	# Joystick 2 (Joystick GND to Arduino GND)
+	unstrobed -PF4 PAD_SLASH #pin_A3
+	unstrobed -PF5 PAD_ASTERIX #pin_A2
+	unstrobed -PF6 PAD_MINUS #pin_A1
+	unstrobed -PF7 PAD_PLUS #pin_A0
+	unstrobed -PB1 SCROLL_LOCK #pin_15
+end