#20288: fix handling of invalid numeric charrefs in HTMLParser.
diff --git a/Lib/HTMLParser.py b/Lib/HTMLParser.py
index 5a55e26..3f97830 100644
--- a/Lib/HTMLParser.py
+++ b/Lib/HTMLParser.py
@@ -195,9 +195,9 @@
                     i = self.updatepos(i, k)
                     continue
                 else:
-                    if ";" in rawdata[i:]: #bail by consuming &#
-                        self.handle_data(rawdata[0:2])
-                        i = self.updatepos(i, 2)
+                    if ";" in rawdata[i:]:  # bail by consuming '&#'
+                        self.handle_data(rawdata[i:i+2])
+                        i = self.updatepos(i, i+2)
                     break
             elif startswith('&', i):
                 match = entityref.match(rawdata, i)