diff --git a/file_list.py b/file_list.py
index bd38869..747846c 100755
--- a/file_list.py
+++ b/file_list.py
@@ -262,7 +262,7 @@ def find_duplicates(sqlfile):
     conn.text_factory=str
     db=conn.cursor()
     dbh=conn.cursor()
-    db.execute("SELECT hash,count(*) FROM list group by hash HAVING count(*) > 1 ")
+    db.execute("SELECT hash,count(*) FROM list WHERE size > 0 GROUP BY hash HAVING count(*) > 1 ")
     duphash=[]
     for row in db:
         hash=row[0]