diff --git a/src/userspace/default.nix b/src/userspace/default.nix
index dc97f8d..d4bb8f1 100644
--- a/src/userspace/default.nix
+++ b/src/userspace/default.nix
@@ -25,6 +25,7 @@ in stdenv.mkDerivation {
   bannerText = "ownerboot";
 
   installPhase = ''
+    runHook preInstall
     mkdir -p $out/usr
     cp -r ${busybox}/bin              $out/bin
     chmod -R u+w $out
@@ -49,5 +50,6 @@ in stdenv.mkDerivation {
     #cp    ${lib.getBin lvm2}/bin/dmsetup           $out/bin/
     #cp    ${cryptsetup}/bin/cryptsetup $out/bin/
     #cp    ${kexec-tools}/bin/kexec           $out/bin/
+    runHook postInstall
   '';
 }