diff --git a/README.md b/README.md
index 93a0dd5..448a3ea 100644
--- a/README.md
+++ b/README.md
@@ -52,8 +52,8 @@ Data type.............: 32-bit integer, output (holding) register table
 
 | LED | Signal |
 |-----|--------|
-| D1  | Bus Aktivität |
-| D2  |        |
+| D1  | Bus Error |
+| D2  | Bus Transmission       |
 | D3  | 5V Rail    |
 
 ### Klemmenbelegung