diff --git a/heracles/catalog/filters.py b/heracles/catalog/filters.py
index 7483bce..11aff14 100644
--- a/heracles/catalog/filters.py
+++ b/heracles/catalog/filters.py
@@ -91,6 +91,8 @@ def __call__(self, page):
         from healpy import ang2pix
 
         lon, lat = self._lonlat
+        good_entry = np.isfiniten(lon) & np.isfinite(lat)
+        lon, lat = lon[good_entry], lat[good_entry]
         ipix = ang2pix(self._nside, page[lon], page[lat], lonlat=True)
         exclude = np.where(self._footprint[ipix] == 0)[0]
         page.delete(exclude)