diff --git a/README.asciidoc b/README.asciidoc
index 4cd171c3b..8c2b7bd81 100644
--- a/README.asciidoc
+++ b/README.asciidoc
@@ -82,7 +82,7 @@ the following dependencies are installed first.
 * python >= 3.5
 * glfw   >= 3.2
 * glew   >= 2.0 (not needed on macOS)
-* freetype, fontconfig (not needed on OSX)
+* freetype, fontconfig (not needed on macOS)
 * xdpyinfo and xsel (only on X11 based systems)
 * gcc or clang (required only for building)
 * pkg-config (required only for building)