diff --git a/src/lib/query.py b/src/lib/query.py
index 856e736..5599c8c 100755
--- a/src/lib/query.py
+++ b/src/lib/query.py
@@ -18,7 +18,7 @@ def divide_proposal(products):
     """
     for pid in np.unique(products['Proposal ID']):
         obs = products[products['Proposal ID'] == pid].copy()
-        close_date = np.unique(np.array([TimeDelta(np.abs(Time(obs['Start']).unix-date.unix), format='sec')
+        close_date = np.unique(np.array([TimeDelta(np.abs(obs['Start'][0].unix-date.unix), format='sec')
                                < 7.*u.d for date in obs['Start']], dtype=bool), axis=0)
         if len(close_date) > 1:
             for date in close_date: