diff --git a/sklearn/cluster/_dbscan.py b/sklearn/cluster/_dbscan.py
index 30205f70ae157..4dd09c9531c44 100644
--- a/sklearn/cluster/_dbscan.py
+++ b/sklearn/cluster/_dbscan.py
@@ -22,6 +22,8 @@
 from ._dbscan_inner import dbscan_inner
 
 
+# This function is not validated using validate_params because
+# it's just a factory for DBSCAN.
 def dbscan(
     X,
     eps=0.5,