diff --git a/gnu/packages/xdisorg.scm b/gnu/packages/xdisorg.scm
index 817eef6c29..21165f384f 100644
--- a/gnu/packages/xdisorg.scm
+++ b/gnu/packages/xdisorg.scm
@@ -2147,6 +2147,7 @@ (define-public clipnotify
                (install-file "README.md" doc)
                #t))))
        #:make-flags (list "CC=gcc")
+       ;; the package provides no test suite:
        #:tests? #f))
     (inputs
      `(("libx11" ,libx11)