diff --git a/pkgs/desktops/gnome-3/core/gnome-dictionary/default.nix b/pkgs/desktops/gnome-3/core/gnome-dictionary/default.nix
index 98398311882..f43f98bdd9b 100644
--- a/pkgs/desktops/gnome-3/core/gnome-dictionary/default.nix
+++ b/pkgs/desktops/gnome-3/core/gnome-dictionary/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, meson, ninja, pkgconfig, desktop-file-utils, appstream-glib, libxslt
+{ stdenv, fetchurl, fetchpatch, meson, ninja, pkgconfig, desktop-file-utils, appstream-glib, libxslt
 , libxml2, gettext, itstool, wrapGAppsHook, docbook_xsl, docbook_xml_dtd_43
 , gnome3, gtk3, glib, gsettings-desktop-schemas }:
 
@@ -11,6 +11,14 @@ stdenv.mkDerivation rec {
     sha256 = "16b8bc248dcf68987826d5e39234b1bb7fd24a2607fcdbf4258fde88f012f300";
   };
 
+  patches = [
+    # fix AppStream validation
+    (fetchpatch {
+      url = "https://gitlab.gnome.org/GNOME/gnome-dictionary/commit/1c94d612030ef87c6e26a01a490470b71c39e341.patch";
+      sha256 = "sha256:0cbswmhs9mks3gsc0iy4wnidsa8sfzzf4s1kgvb80qwffgxz5m8b";
+    })
+  ];
+
   doCheck = true;
 
   nativeBuildInputs = [