diff --git a/src/sourmash/minhash.py b/src/sourmash/minhash.py
index 97b9973aef..cd825fdb43 100644
--- a/src/sourmash/minhash.py
+++ b/src/sourmash/minhash.py
@@ -970,7 +970,7 @@ def unique_dataset_hashes(self):
         if not self.scaled:
             raise TypeError("can only approximate unique_dataset_hashes for scaled MinHashes")
         # TODO: replace set_size with HLL estimate when that gets implemented
-        return len(self.hashes) * self.scaled # + (self.ksize - 1) for bp estimation
+        return len(self) * self.scaled # + (self.ksize - 1) for bp estimation
 
     def size_is_accurate(self, relative_error=0.20, confidence=0.95):
         """
diff --git a/src/sourmash/search.py b/src/sourmash/search.py
index d08545be20..41053ccb69 100644
--- a/src/sourmash/search.py
+++ b/src/sourmash/search.py
@@ -235,8 +235,8 @@ def get_cmpinfo(self):
         # could define in PrefetchResult instead, same reasoning as above
         self.query_abundance = self.mh1.track_abundance
         self.match_abundance = self.mh2.track_abundance
-        self.query_n_hashes = len(self.mh1.hashes)
-        self.match_n_hashes = len(self.mh2.hashes)
+        self.query_n_hashes = len(self.mh1)
+        self.match_n_hashes = len(self.mh2)
 
     @property
     def pass_threshold(self):