diff --git a/pkgs/data/documentation/scheme-manpages/default.nix b/pkgs/data/documentation/scheme-manpages/default.nix
index 87119f31452b..96d8d9ac1194 100644
--- a/pkgs/data/documentation/scheme-manpages/default.nix
+++ b/pkgs/data/documentation/scheme-manpages/default.nix
@@ -2,7 +2,7 @@
 
 stdenvNoCC.mkDerivation rec {
   pname = "scheme-manpages";
-  version = "unstable-2024-02-11";
+  version = "0-unstable-2024-02-11";
 
   src = fetchFromGitHub {
     owner = "schemedoc";