1 files changed, 2 insertions, 1 deletions
diff --git a/pkgs/build-support/build-fhs-chrootenv/default.nix b/pkgs/build-support/build-fhs-chrootenv/default.nix
index 461f4762aba6..dfce8edcb23d 100644
--- a/pkgs/build-support/build-fhs-chrootenv/default.nix
+++ b/pkgs/build-support/build-fhs-chrootenv/default.nix
@@ -1,4 +1,4 @@
-{ stdenv } : { env } :
+{ stdenv } : { env, extraInstallCommands ? "" } :
 
 let
   # References to shell scripts that set up or tear down the environment
@@ -43,5 +43,6 @@ in stdenv.mkDerivation {
         -e "s|@name@|${name}|g" \
         ${destroySh} > destroy-${name}-chrootenv
     chmod +x destroy-${name}-chrootenv
+    ${extraInstallCommands}
   '';
 }