diff --git a/pkgs/by-name/ot/otf2/package.nix b/pkgs/by-name/ot/otf2/package.nix
index ce73099f4015..12593de5b110 100644
--- a/pkgs/by-name/ot/otf2/package.nix
+++ b/pkgs/by-name/ot/otf2/package.nix
@@ -14,6 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   outputs = [
     "out"
     "lib"
+    "doc"
   ];
 
   src = fetchurl {