diff --git a/index/em/emdee/emdee-0.2.0.toml b/index/em/emdee/emdee-0.2.0.toml
index b2fa10658..b65b52d28 100644
--- a/index/em/emdee/emdee-0.2.0.toml
+++ b/index/em/emdee/emdee-0.2.0.toml
@@ -28,6 +28,7 @@ windows = true
 '...'   = false
 
 [[depends-on]]
+gnat = "^13.0"
 gtkada = "^24.0.0"
 
 [[depends-on]]