diff --git a/X-Arcade/README.md b/X-Arcade/README.md
index 57458bc..3b60bb0 100644
--- a/X-Arcade/README.md
+++ b/X-Arcade/README.md
@@ -5,8 +5,8 @@
 
 ```
 D9-connector -> Arduino Pro Micro
-5 -> 3 (clk)
-6 -> 4 (data)
+6 -> 3 (data)
+5 -> 2 (clk)
 1 -> Vcc (5V)
 2 -> Vcc (PS/2-mode)
 9 -> Vcc (5V)