diff --git a/roles/mariadb/defaults/main.yml b/roles/mariadb/defaults/main.yml
index 319a427..f78bf02 100644
--- a/roles/mariadb/defaults/main.yml
+++ b/roles/mariadb/defaults/main.yml
@@ -6,7 +6,7 @@
 #
 
 # default is 128MB but is a waste because it seems only the mysql table uses it
-key_buffer_size: 32M
+key_buffer_size: 8M
 
 # default is 128MB but is a waste because it seems only information_schema uses
 # AriaDB, see: https://mariadb.com/kb/en/mariadb/aria-system-variables