diff --git a/nix/configuration/roles/base/default.nix b/nix/configuration/roles/base/default.nix
index f512352..3edc1ce 100644
--- a/nix/configuration/roles/base/default.nix
+++ b/nix/configuration/roles/base/default.nix
@@ -72,5 +72,7 @@ in
       git_fix_author
       rsync_clone
     ];
+
+    documentation.enable = false;
   };
 }
diff --git a/nix/kubernetes/configuration.nix b/nix/kubernetes/configuration.nix
index 36c5da4..59cd5ac 100644
--- a/nix/kubernetes/configuration.nix
+++ b/nix/kubernetes/configuration.nix
@@ -64,6 +64,9 @@
     };
     nix.settings.auto-optimise-store = !config.me.buildingPortable;
 
+    # Disable installing documentation.
+    documentation.enable = false;
+
     environment.persistence."/persist" = lib.mkIf (config.me.mountPersistence) {
       hideMounts = true;
       directories = [