diff --git a/nix/modules/hive-forge.nix b/nix/modules/hive-forge.nix
index b4c1535e..da52a894 100644
--- a/nix/modules/hive-forge.nix
+++ b/nix/modules/hive-forge.nix
@@ -312,6 +312,12 @@ in
                 SIGNING_KEY = "default";
                 GNUPGHOME = "/var/lib/forgejo/.gnupg";
               };
+              # Enable Forgejo Actions so the runner registration token
+              # API endpoint is available. Without this the endpoint
+              # returns "runner registration token not found" regardless
+              # of token scopes. Required by `hive-ci-register.service`
+              # in the hive-ci container.
+              actions.ENABLED = true;
               # F3 (federation) computes its data dir relative to the
               # forgejo binary, which lands in the read-only nix
               # store and crashes anything that touches the F3