diff --git a/pkgs/applications/science/astronomy/gildas/default.nix b/pkgs/applications/science/astronomy/gildas/default.nix
index 82efb5086446..0a98c1b7a03b 100644
--- a/pkgs/applications/science/astronomy/gildas/default.nix
+++ b/pkgs/applications/science/astronomy/gildas/default.nix
@@ -65,6 +65,7 @@ stdenv.mkDerivation rec {
     license = lib.licenses.free;
     maintainers = [ lib.maintainers.bzizou lib.maintainers.smaret ];
     platforms = lib.platforms.all;
+    broken = stdenv.isDarwin && stdenv.isAarch64;
   };
 
 }