diff --git a/hosts/tor/tor.nix b/hosts/tor/tor.nix
index 58fac5b..f2b6726 100644
--- a/hosts/tor/tor.nix
+++ b/hosts/tor/tor.nix
@@ -2,6 +2,8 @@
   services.tor = {
     settings = {
       Nickname = "DXV7520";
+      # Auto-detection of CPUs does not seem to work
+      NumCPUs = 2;
       ORPort = [
         { addr = "91.210.59.57"; port = 443; }
         { addr = "[2a0d:3e83:1:b284::1]"; port = 443; }