diff --git a/manifest.dhall b/manifest.dhall
index 0d1d1d23f383f2108ad607bedb753b420f75a9ab..c1915b07495839870a347f0f47a332225a4aabb1 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -244,6 +244,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "dlist" "1.0"
     , callHackage "doclayout" "0.4"
     , callHackage "doctest-exitcode-stdio" "0.0"
+    , callHackage "doctest-lib" "0.1"
     , callCabal2nix
         "doctest"
         "https://github.com/sol/doctest"
diff --git a/overlay.nix b/overlay.nix
index e2e8d308a9f72624434b6f890edbc82327253b77..3b99b6177267f7f0722f4183ce082559bbef33fa 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -337,6 +337,8 @@ self: with pkgs.haskell.lib; {
 
   doctest-exitcode-stdio = self.callPackage (./pkgs/doctest-exitcode-stdio.nix) { };
 
+  doctest-lib = self.callPackage (./pkgs/doctest-lib.nix) { };
+
   doctest-parallel = self.callPackage (./pkgs/doctest-parallel.nix) { };
 
   dotgen = self.callPackage (./pkgs/dotgen.nix) { };
diff --git a/pkgs/doctest-lib.nix b/pkgs/doctest-lib.nix
new file mode 100644
index 0000000000000000000000000000000000000000..e5c532e29770eff48556bd21e57d509873bd1c4a
--- /dev/null
+++ b/pkgs/doctest-lib.nix
@@ -0,0 +1,21 @@
+{ mkDerivation, base, lib }:
+mkDerivation {
+  pname = "doctest-lib";
+  version = "0.1";
+  sha256 = "02c6fa934b4ebc1abca1f7346920921969fc5080397efb606ca270d840555cef";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [ base ];
+  enableLibraryProfiling = false;
+  enableExecutableProfiling = false;
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  homepage = "https://hub.darcs.net/thielema/doctest-lib/";
+  description = "Parts of doctest exposed as library";
+  license = lib.licenses.mit;
+  broken = false;
+}