diff --git a/docs/custom_conf.py b/docs/custom_conf.py
index 73aece732..2880c6cae 100644
--- a/docs/custom_conf.py
+++ b/docs/custom_conf.py
@@ -57,8 +57,6 @@
 # features, it is sufficient to update the settings in the "Project
 # information" section.
 
-suppress_warnings = []
-
 ############################################################
 ### Project information
 ############################################################