diff --git a/river/naive_bayes/complement.py b/river/naive_bayes/complement.py
index 80598b25eb..0a02f3a208 100644
--- a/river/naive_bayes/complement.py
+++ b/river/naive_bayes/complement.py
@@ -28,8 +28,8 @@ class ComplementNB(base.BaseNB):
 
     Attributes
     ----------
-    class_dist : proba.Multinomial
-        Class prior probability distribution.
+    class_counts : collections.Counter
+        Number of times each class has been seen.
     feature_counts : collections.defaultdict
         Total frequencies per feature and class.
     class_totals : collections.Counter
diff --git a/river/naive_bayes/multinomial.py b/river/naive_bayes/multinomial.py
index 97ce314d50..9041d2b9d8 100644
--- a/river/naive_bayes/multinomial.py
+++ b/river/naive_bayes/multinomial.py
@@ -29,8 +29,8 @@ class MultinomialNB(base.BaseNB):
 
     Attributes
     ----------
-    class_dist : proba.Multinomial
-        Class prior probability distribution.
+    class_counts : collections.Counter
+        Number of times each class has been seen.
     feature_counts : collections.defaultdict
         Total frequencies per feature and class.
     class_totals : collections.Counter