diff --git a/backup.nix b/backup.nix
index a398253..d5d344d 100644
--- a/backup.nix
+++ b/backup.nix
@@ -44,6 +44,9 @@ in
     ];
     exclude = [
       "/nix"
+      "/sys"
+      "/run"
+      "/proc"
       "/root/.cache/"
       "**/.Trash"
       "/tmp/*"