diff --git a/index/ra/raylib/raylib-0.1.0.toml b/index/ra/raylib/raylib-0.1.0.toml
index 95cb7bd5a..881e669f3 100644
--- a/index/ra/raylib/raylib-0.1.0.toml
+++ b/index/ra/raylib/raylib-0.1.0.toml
@@ -9,6 +9,9 @@ licenses = "MIT OR Apache-2.0 WITH LLVM-exception"
 website = ""
 tags = ["raylib", "gamedev", "binding"]
 
+[[depends-on]]
+gnat = ">=12 & <2000"
+
 [origin]
 commit = "d5a6702eec1774ee3753672e62fbb99d88ef893a"
 url = "git+https://github.com/Fabien-Chouteau/raylib-ada.git"