diff --git a/README.md b/README.md
index d323d22..83af9b4 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ This repository contains documentation, links and example applications.
 <img src="assets/preview.png" title="Preview">
 
 # Compatibility
-* Highly compatible with compilers (C89, simple preprocessors)
+* GNU C99 compatible
 * No `make` required, entirely configurable from your compiler, or header files
 * Supports wide range of hardware (16-bit+, little/big endian)
 * Standardized 16-bit color format (AAAARRRRGGGGBBBB, effectively 12-bit on most platforms)