diff --git a/pkgs/by-name/ne/networkmanager-fortisslvpn/package.nix b/pkgs/by-name/ne/networkmanager-fortisslvpn/package.nix
index 7e927c650cdd..e9c86cbeb27a 100644
--- a/pkgs/by-name/ne/networkmanager-fortisslvpn/package.nix
+++ b/pkgs/by-name/ne/networkmanager-fortisslvpn/package.nix
@@ -37,11 +37,14 @@ stdenv.mkDerivation rec {
     ./support-ppp-2.5.0.patch
   ];
 
+  strictDeps = true;
+
   nativeBuildInputs = [
     autoreconfHook
     gettext
     pkg-config
     file
+    glib
   ];
 
   buildInputs = [