diff --git a/src/resdk/tables/base.py b/src/resdk/tables/base.py
index c9422aea..23ef7aa2 100644
--- a/src/resdk/tables/base.py
+++ b/src/resdk/tables/base.py
@@ -336,7 +336,7 @@ def _get_annotations(self) -> pd.DataFrame:
         # Make one query for all values instead of one per sample
         avs = self.resolwe.annotation_value.filter(
             entity__collection=self.collection.id
-        )
+        ).iterate()
 
         sample_data = defaultdict(dict)
         sample_dtypes = defaultdict(dict)