diff --git a/pkgs/by-name/fl/fllog/package.nix b/pkgs/by-name/fl/fllog/package.nix
index 00d3de60d783..f69b5aa0cfb3 100644
--- a/pkgs/by-name/fl/fllog/package.nix
+++ b/pkgs/by-name/fl/fllog/package.nix
@@ -22,6 +22,7 @@ stdenv.mkDerivation rec {
   ];
 
   nativeBuildInputs = [
+    fltk13 # fltk-config
     pkg-config
   ];