diff --git a/nixos/tests/nexus.nix b/nixos/tests/nexus.nix
index bf49d2247bd8..783c9f5c019f 100644
--- a/nixos/tests/nexus.nix
+++ b/nixos/tests/nexus.nix
@@ -14,7 +14,7 @@ import ./make-test.nix ({ pkgs, ...} : {
     server =
       { ... }:
       { virtualisation.memorySize = 2047; # qemu-system-i386 has a 2047M limit
-        virtualisation.diskSize = 2048;
+        virtualisation.diskSize = 8192;
 
         services.nexus.enable = true;
       };