diff --git a/docs/topics/testing.txt b/docs/topics/testing.txt
index 95fb6f8eb2..f7aadd68f3 100644
--- a/docs/topics/testing.txt
+++ b/docs/topics/testing.txt
@@ -557,6 +557,9 @@ to a faster hashing algorithm::
         'django.contrib.auth.hashers.MD5PasswordHasher',
     )
 
+Don't forget to also include in :setting:`PASSWORD_HASHERS` any hashing
+algorithm used in fixtures, if any.
+
 Testing tools
 =============