diff --git a/gnu/packages/gtk.scm b/gnu/packages/gtk.scm
index 8feac11d98..bc9c687511 100644
--- a/gnu/packages/gtk.scm
+++ b/gnu/packages/gtk.scm
@@ -625,6 +625,7 @@ application suites.")
              (base32
               "157nh9gg0p2avw765hrnkvr8lsh2w811397yxgjv6q5j4fzz6d1q"))
             (patches (search-patches "gtk3-respect-GUIX_GTK3_PATH.patch"))))
+   (outputs '("out" "bin" "doc"))
    (propagated-inputs
     `(("at-spi2-atk" ,at-spi2-atk)
       ("atk" ,atk)