diff --git a/pkgs/os-specific/linux/kernel/linux-hardened-copperhead.nix b/pkgs/os-specific/linux/kernel/linux-hardened-copperhead.nix
index 6cd306381c1..4b44ce9b00d 100644
--- a/pkgs/os-specific/linux/kernel/linux-hardened-copperhead.nix
+++ b/pkgs/os-specific/linux/kernel/linux-hardened-copperhead.nix
@@ -9,7 +9,7 @@ in
 import ./generic.nix (args // {
   version = "${version}-${revision}";
   extraMeta.branch = "4.12";
-  modDirVersion = "${version}.0";
+  modDirVersion = "${version}";
 
   src = fetchFromGitHub {
     inherit sha256;