diff --git a/overlays/zfs-replicate-env-fix.patch b/overlays/zfs-replicate-env-fix.patch
deleted file mode 100644
index 663a188..0000000
--- a/overlays/zfs-replicate-env-fix.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/zfs/replicate/filesystem/list.py
-+++ b/zfs/replicate/filesystem/list.py
-@@ -42,4 +42,4 @@ def list(  # pylint: disable=W0622
- def _list(filesystem: FileSystem) -> str:
-     options = ["-H", "-o name,readonly", "-t filesystem,volume", "-r"]
-
--    return f"/usr/bin/env - zfs list {' '.join(options)} '{filesystem.name}'"
-+    return f"/usr/bin/env zfs list {' '.join(options)} '{filesystem.name}'"
-
-
- def _filesystems(zfs_list_output: bytes) -> List[FileSystem]:
diff --git a/overlays/zfs-replicate.nix b/overlays/zfs-replicate.nix
index 5999f53..6cfa5aa 100644
--- a/overlays/zfs-replicate.nix
+++ b/overlays/zfs-replicate.nix
@@ -1,7 +1,8 @@
 final: prev: {
   zfs-replicate = prev.zfs-replicate.overrideAttrs (oldAttrs: {
-    patches = (oldAttrs.patches or []) ++ [
-      ./zfs-replicate-env-fix.patch
-    ];
+    postPatch = ''
+      substituteInPlace zfs/replicate/filesystem/list.py \
+          --replace "/usr/bin/env - zfs list" "/usr/bin/env zfs list"
+    '';
   });
 }