diff --git a/nixos/tests/zfs.nix b/nixos/tests/zfs.nix
index a6908024de9..70d635fbc39 100644
--- a/nixos/tests/zfs.nix
+++ b/nixos/tests/zfs.nix
@@ -7,7 +7,21 @@ let
   makeTest = import ./make-test.nix;

   makeZfsTest = name:
-    { kernelPackage ? pkgs.linuxPackages_latest
+    { kernelPackage ? (let myLinuxPackagesZfs = (pkgs.linuxPackagesFor (pkgs.linux_4_16.override {
+        extraConfig = ''
+          DEBUG_INFO y
+          DEFAULT_HOSTNAME "nixos"
+        ''; })).extend (
+          self: super: {
+      spl = super.spl.overrideAttrs (oldAttrs: rec {
+              src = /home/clemens/devel/spl;
+            });
+      zfs = super.zfs.overrideAttrs (oldAttrs: rec {
+         incompatibleKernelVersion = "";
+              src = /home/clemens/devel/zfs;
+            });
+        });
+    in pkgs.recurseIntoAttrs myLinuxPackagesZfs)
     , enableUnstable ? false
     , extraTest ? ""
     }:
diff --git a/pkgs/os-specific/linux/zfs/default.nix b/pkgs/os-specific/linux/zfs/default.nix
index 11d4fc34aa9..a3bc94afd35 100644
--- a/pkgs/os-specific/linux/zfs/default.nix
+++ b/pkgs/os-specific/linux/zfs/default.nix
@@ -148,7 +148,7 @@ in {
   # to be adapted
   zfsStable = common {
     # comment/uncomment if breaking kernel versions are known
-    incompatibleKernelVersion = "4.16";
+    #incompatibleKernelVersion = "4.16";

     # this package should point to the latest release.
     version = "0.7.9";