diff --git a/pkgs/tools/inputmethods/ibus-engines/ibus-uniemoji/default.nix b/pkgs/tools/inputmethods/ibus-engines/ibus-uniemoji/default.nix
index 1ea7ef4251f..e31d1ddfaa8 100644
--- a/pkgs/tools/inputmethods/ibus-engines/ibus-uniemoji/default.nix
+++ b/pkgs/tools/inputmethods/ibus-engines/ibus-uniemoji/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
     sha256 = "121zh3q0li1k537fcvbd4ns4jgl9bbb9gm9ihy8cfxgirv38lcfa";
   };
 
-  propagatedBuildInputs = with python3Packages; [ pyxdg python-Levenshtein ];
+  propagatedBuildInputs = with python3Packages; [ pyxdg python-Levenshtein pygobject3 ];
 
   nativeBuildInputs = [ python3Packages.wrapPython ];