--- a/sbsv2/raptor/python/plugins/filter_what.py	Mon Dec 14 21:34:47 2009 +0000
+++ b/sbsv2/raptor/python/plugins/filter_what.py	Mon Dec 14 21:47:42 2009 +0000
@@ -150,7 +150,8 @@
 							if self.current_bldinf != '':
 								self.end_bldinf()
 							self.current_bldinf = bi
-							self.start_bldinf(bi)
+							if bi != '':
+								self.start_bldinf(bi)