diff --git a/pkgs/desktops/gnome-3/core/libpeas/default.nix b/pkgs/desktops/gnome-3/core/libpeas/default.nix
index 8fddd8f7d5a..998a1a02b3f 100644
--- a/pkgs/desktops/gnome-3/core/libpeas/default.nix
+++ b/pkgs/desktops/gnome-3/core/libpeas/default.nix
@@ -8,7 +8,11 @@ stdenv.mkDerivation rec {
   configureFlags = [ "--enable-python3" ];
 
   nativeBuildInputs = [ pkgconfig ];
-  buildInputs =  [ intltool glib gtk3 gnome3.defaultIconTheme ncurses python3Packages.python python3Packages.pygobject3 gobjectIntrospection ];
+  buildInputs =  [ intltool glib gtk3 gnome3.defaultIconTheme ncurses python3Packages.python python3Packages.pygobject3 ];
+  propagatedBuildInputs = [
+    # Required by libpeas-1.0.pc
+    gobjectIntrospection
+  ];
 
   meta = with stdenv.lib; {
     description = "A GObject-based plugins engine";