diff --git a/astrodbkit/astrodb.py b/astrodbkit/astrodb.py
index a068fe2..598d1c1 100755
--- a/astrodbkit/astrodb.py
+++ b/astrodbkit/astrodb.py
@@ -264,14 +264,29 @@ def clean_up(self, table):
 
         while any(duplicate):
             # Pull out duplicates one by one
-            SQL = "SELECT t1.id, t2.id FROM {0} t1 JOIN {0} t2 ON t1.source_id=t2.source_id WHERE t1.id!=t2.id AND {1}{2}{3}" \
-                .format(table, ' AND '.join(['t1.{0}=t2.{0}'.format(i) for i in req_keys]), (' AND ' \
-                                                                                             + ' AND '.join(
-                    ["(t1.id NOT IN ({0}) and t2.id NOT IN ({0}))".format(','.join(map(str, [id1, id2]))) for id1, id2 \
-                     in zip(ignore['id1'], ignore['id2'])])) if any(ignore) else '', (' AND ' \
-                                                                                      + ' AND '.join(
-                    ["(t1.id NOT IN ({0}) and t2.id NOT IN ({0}))".format(','.join(map(str, ni))) for ni \
-                     in new_ignore])) if new_ignore else '')
+            if table.lower() != 'sources':
+                SQL = "SELECT t1.id, t2.id FROM {0} t1 JOIN {0} t2 ON t1.source_id=t2.source_id " \
+                      "WHERE t1.id!=t2.id AND {1}{2}{3}"\
+                    .format(table,
+                            ' AND '.join(['t1.{0}=t2.{0}'.format(i) for i in req_keys]),
+                            (' AND ' + ' AND '.join(["(t1.id NOT IN ({0}) and t2.id NOT IN ({0}))"
+                                                    .format(','.join(map(str, [id1, id2]))) for id1, id2
+                                                     in zip(ignore['id1'], ignore['id2'])]))
+                                              if any(ignore) else '',
+                            (' AND ' + ' AND '.join(["(t1.id NOT IN ({0}) and t2.id NOT IN ({0}))"
+                                                    .format(','.join(map(str, ni))) for ni in new_ignore]))
+                                              if new_ignore else '')
+            else:
+                SQL = "SELECT t1.id, t2.id FROM {0} t1 JOIN {0} t2 ON t1.id=t2.id WHERE {1}{2}{3}" \
+                    .format(table,
+                            ' AND '.join(['t1.{0}=t2.{0}'.format(i) for i in req_keys]),
+                            (' AND ' + ' AND '.join(["(t1.id NOT IN ({0}) and t2.id NOT IN ({0}))"
+                                                    .format(','.join(map(str, [id1, id2]))) for id1, id2
+                                                     in zip(ignore['id1'], ignore['id2'])]))
+                            if any(ignore) else '',
+                            (' AND ' + ' AND '.join(["(t1.id NOT IN ({0}) and t2.id NOT IN ({0}))"
+                                                    .format(','.join(map(str, ni))) for ni in new_ignore]))
+                            if new_ignore else '')
 
             duplicate = self.query(SQL, fetch='one')