diff --git a/weasyprint/text.py b/weasyprint/text.py
index 2c60b83f..59da3cd4 100644
--- a/weasyprint/text.py
+++ b/weasyprint/text.py
@@ -1319,7 +1319,7 @@ def show_first_line(context, textbox, text_overflow):
         data = harfbuzz.hb_blob_get_data(harfbuzz.hb_face_reference_blob(
             harfbuzz.hb_font_get_face(hb_font)), length)
         font = ffi.unpack(data, int(length[0]))
-        context.add_font(font, pango_font, glyph_item, ffi)
+        context.add_font(font, pango_font, glyph_item)
         if run.next == ffi.NULL:
             break
         else: