diff --git a/pkgs/tools/security/gen-oath-safe/default.nix b/pkgs/tools/security/gen-oath-safe/default.nix
index 51ff5b0e81e..20ee69eeaea 100644
--- a/pkgs/tools/security/gen-oath-safe/default.nix
+++ b/pkgs/tools/security/gen-oath-safe/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ makeWrapper ];
 
-  buildPhase = ":";
+  dontBuild = true;
 
   installPhase =
     let