diff --git a/mpd-watcher.scm b/mpd-watcher.scm
index e49be71..628c7db 100644
--- a/mpd-watcher.scm
+++ b/mpd-watcher.scm
@@ -22,6 +22,7 @@
    (build-system python-build-system)
    (arguments
     '(#:tests? #f
+      #:phases
       (modify-phases %standard-phases
                      (delete 'sanity-check))))
    (native-inputs