diff --git a/actual-server.scm b/actual-server.scm
index 9303b7f..23dca97 100644
--- a/actual-server.scm
+++ b/actual-server.scm
@@ -28,7 +28,12 @@
        #:phases (modify-phases %standard-phases
                   (delete 'configure)
                   (delete 'build)
-                  (delete 'install))))
+                  (delete 'install)
+                  (add-after 'unpack 'store-source
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((source-dir (assoc-ref outputs "out")))
+                        (copy-recursively "." (string-append source-dir "/source"))
+                        #t))))))
     (home-page "https://github.com/actualbudget/actual-server")
     (synopsis "Actual server for budget management")
     (description "Actual is a local-first personal finance tool.")