diff --git a/pdfminer/converter.py b/pdfminer/converter.py
index 23091be..46043a3 100644
--- a/pdfminer/converter.py
+++ b/pdfminer/converter.py
@@ -278,8 +278,8 @@ class HTMLConverter(PDFConverter):
         if font != self._font:
             if self._font is not None:
                 self.write('</span>')
-            self.write('<span style="font-size:%dpx">' %
-                       (fontsize * self.scale * self.fontscale))
+            self.write('<span style="font-family: %s; font-size:%dpx">' %
+                       (fontname, fontsize * self.scale * self.fontscale))
             self._font = font
         self.write_text(text)
         return