diff --git a/README.md b/README.md
index 1ba8027..b67b55d 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ binaries.
     apt install git cmake pkg-config libglib2.0-dev\
         libssl-dev uuid-dev libavformat-dev libswscale-dev \
         python3 libmagic-dev libfreetype6-dev libcurl-dev \
-        libbz2-dev yasm libharfbuzz-dev
+        libbz2-dev yasm libharfbuzz-dev ragel
    ```
     *(FreeBSD)*
     ```bash