diff --git a/screenless/bureau/bureau.py b/screenless/bureau/bureau.py
index e2db59f..98e54eb 100644
--- a/screenless/bureau/bureau.py
+++ b/screenless/bureau/bureau.py
@@ -365,9 +365,9 @@ class Bureau(object):
         for font in glob.glob(fontsdir + "/*.ttf"):
             fontlist.append(("local", "file://" + font))
             self.log.debug("adding font " + str(fdict))
-        fdict["src"] = fontlist
+        fdict = { "src": fontlist }
         fontconfig.add_font_face(fdict,
-                                     weasyprint.default_url_fetcher)
+                                 weasyprint.default_url_fetcher)
         weasyprint.HTML(string=templ.render_unicode(**kwargs)).write_pdf(pdfpath, font_config=fontconfig)
         subprocess.call("lpr -o sides=two-sided-long-edge -o InputSlot=Upper " + pdfpath, shell=True)