diff --git a/pkgs/development/interpreters/picolisp/default.nix b/pkgs/development/interpreters/picolisp/default.nix
index 6f7f2df96bf..e2b64fd4e02 100644
--- a/pkgs/development/interpreters/picolisp/default.nix
+++ b/pkgs/development/interpreters/picolisp/default.nix
@@ -42,6 +42,7 @@ stdenv.mkDerivation rec {
     homepage = https://picolisp.com/;
     license = licenses.mit;
     platforms = platforms.all;
+    broken = stdenv.isDarwin; # times out
     maintainers = with maintainers; [ raskin tohl ];
   };