diff --git a/doc/languages-frameworks/haskell.section.md b/doc/languages-frameworks/haskell.section.md
index 247daf8d1dbe..3c2798c538d0 100644
--- a/doc/languages-frameworks/haskell.section.md
+++ b/doc/languages-frameworks/haskell.section.md
@@ -191,6 +191,10 @@ and `version` from Hackage.
 `sha256`
 : Hash to use for the default case of `src`.
 
+`sourceRoot`, `setSourceRoot`
+: Passed to `stdenv.mkDerivation`; see [“Variables controlling the unpack
+phase”](#variables-controlling-the-unpack-phase).
+
 `revision`
 : Revision number of the updated cabal file to fetch from Hackage.
 If `null` (which is the default value), the one included in `src` is used.
diff --git a/pkgs/development/haskell-modules/generic-builder.nix b/pkgs/development/haskell-modules/generic-builder.nix
index 92c2451a5df1..14afa3dfe6b4 100644
--- a/pkgs/development/haskell-modules/generic-builder.nix
+++ b/pkgs/development/haskell-modules/generic-builder.nix
@@ -34,6 +34,8 @@ in
 , version, revision ? null
 , sha256 ? null
 , src ? fetchurl { url = "mirror://hackage/${pname}-${version}.tar.gz"; inherit sha256; }
+, sourceRoot ? null
+, setSourceRoot ? null
 , buildDepends ? [], setupHaskellDepends ? [], libraryHaskellDepends ? [], executableHaskellDepends ? []
 , buildTarget ? ""
 , buildTools ? [], libraryToolDepends ? [], executableToolDepends ? [], testToolDepends ? [], benchmarkToolDepends ? []
@@ -825,6 +827,8 @@ stdenv.mkDerivation ({
          ;
 
 }
+// optionalAttrs (args ? sourceRoot)             { inherit sourceRoot; }
+// optionalAttrs (args ? setSourceRoot)          { inherit setSourceRoot; }
 // optionalAttrs (args ? preCompileBuildDriver)  { inherit preCompileBuildDriver; }
 // optionalAttrs (args ? postCompileBuildDriver) { inherit postCompileBuildDriver; }
 // optionalAttrs (args ? preUnpack)              { inherit preUnpack; }