diff --git a/lib/mkLatexPdfDocument.nix b/lib/mkLatexPdfDocument.nix
index 2a71d04..6a1f60d 100644
--- a/lib/mkLatexPdfDocument.nix
+++ b/lib/mkLatexPdfDocument.nix
@@ -65,6 +65,10 @@ in
       ]);
 
     phases = args.phases or ["unpackPhase" "buildPhase" "installPhase"];
+    FONTCONFIG_FILE = pkgs.makeFontsConf {
+      fontDirectories = 
+        args.fonts or [];
+    };
 
     buildPhase =
       args.buildPhase