diff --git a/README.md b/README.md
index 9836a98..bf152f1 100644
--- a/README.md
+++ b/README.md
@@ -13,3 +13,6 @@ It works by sending serial commands to the arduino, and is based on the works of
 ## Dependency
 I moddified the original `LiquidCrystal` from Arduino LLC to work with 4x40 hd44780 displays, this means adding a second enable line.
 This library is included in this repository.
+
+## Known bugs
+This driver does not work with the lcdproc client in Rasplex, all widgets expect text are broken.
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