diff --git a/pkgs/development/libraries/flatpak/default.nix b/pkgs/development/libraries/flatpak/default.nix
index 54afc53ac986..42733922687d 100644
--- a/pkgs/development/libraries/flatpak/default.nix
+++ b/pkgs/development/libraries/flatpak/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
   version = "1.6.1";
 
   # TODO: split out lib once we figure out what to do with triggerdir
-  outputs = [ "out" "man" "doc" "installedTests" ];
+  outputs = [ "out" "dev" "man" "doc" "installedTests" ];
 
   src = fetchurl {
     url = "https://github.com/flatpak/flatpak/releases/download/${version}/${pname}-${version}.tar.xz";