diff --git a/README.md b/README.md
index 6f49673..9ee583c 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ This is a (currently not bug free) implementation of the QOI image compression a
 
 Currently supports de- and encoding from and to PNG.
 
+Current state is highly buggy and strangely only functions with 256 x 256 images.
+
 ## To build
 
 run `cargo build -r` to build a stable version for your rustc toolchain in `./target/release`