--- a/python/storage.py	Wed Jul 05 18:01:43 2017 -0400
+++ b/python/storage.py	Wed Jul 05 18:07:53 2017 -0400
@@ -597,9 +597,9 @@
     connection = sqlite3.connect(filename)
     cursor = connection.cursor()
     try:
-        cursor.execute('CREATE TABLE IF NOT EXISTS prototypes (dbfilename VARCHAR, id INTEGER, trajectory_type VARCHAR CHECK (trajectory_type IN (\"feature\", \"object\")), nmatchings INTEGER, PRIMARY KEY (id, dbfilename))')
+        cursor.execute('CREATE TABLE IF NOT EXISTS prototypes (filename VARCHAR, id INTEGER, trajectory_type VARCHAR CHECK (trajectory_type IN (\"feature\", \"object\")), nmatchings INTEGER, PRIMARY KEY (filename, id))')
         for p in prototypes:
-            cursor.execute('INSERT INTO prototypes (dbfilename, id, trajectory_type, nmatchings) VALUES (?,?,?,?)', (p.getFilename(), p.getNum(), p.getTrajectoryType(), p.getNMatchings()))
+            cursor.execute('INSERT INTO prototypes (filename, id, trajectory_type, nmatchings) VALUES (?,?,?,?)', (p.getFilename(), p.getNum(), p.getTrajectoryType(), p.getNMatchings()))
     except sqlite3.OperationalError as error:
         printDBError(error)
     connection.commit()