diff --git a/src/adler/dataclasses/AdlerPlanetoid.py b/src/adler/dataclasses/AdlerPlanetoid.py
index 0d79da6..b2ea2c8 100644
--- a/src/adler/dataclasses/AdlerPlanetoid.py
+++ b/src/adler/dataclasses/AdlerPlanetoid.py
@@ -24,8 +24,8 @@ def __init__(self, ssObjectId, population_location="RSP", sql_filename=None):
         self.sql_filename = sql_filename
         # can also include date ranges at some point
 
-        # create empty AdlerData dataclass object
-        self.AdlerData = AdlerData()
+        # create empty AdlerData dataclass object. will replace dummy list as soon as filter functionality is included.
+        self.AdlerData = AdlerData(["dummy_filter"])
 
         # this creates the AdlerPlanetoid.Observations, AdlerPlanetoid.MPCORB and
         # AdlerPlanetoid.SSObject objects.