diff --git a/README.rst b/README.rst
index fd7067d..8c512de 100644
--- a/README.rst
+++ b/README.rst
@@ -70,7 +70,8 @@ timer or cronjob to do this periodically. Examples are included::
     0x0-vscan.service
     0x0-vscan.timer
 
-Remember to adjust your size limits in clamd.conf!
+Remember to adjust your size limits in clamd.conf, including
+``StreamMaxLength``!
 
 This feature requires the `clamd module <https://pypi.org/project/clamd/>`_.
 
diff --git a/instance/config.example.py b/instance/config.example.py
index 5674eea..825afcb 100644
--- a/instance/config.example.py
+++ b/instance/config.example.py
@@ -173,7 +173,7 @@ NSFW_THRESHOLD = 0.608
 # Since this can take a very long time on larger files, it is not done
 # immediately but every time you run the vscan command. It is recommended to
 # configure a systemd timer or cronjob to do this periodically.
-# Remember to adjust your size limits in clamd.conf!
+# Remember to adjust your size limits in clamd.conf, including StreamMaxLength!
 #
 # Example:
 # from clamd import ClamdUnixSocket