--- a/scripts/mysql_install_db.sh
+++ b/scripts/mysql_install_db.sh
@@ -358,7 +358,7 @@
     cannot_find_file fill_help_tables.sql @pkgdata_locations@
     exit 1
   fi
-  plugindir=`find_in_dirs --dir auth_pam.so $basedir/lib*/plugin $basedir/lib*/mysql/plugin`
+  plugindir=`find_in_dirs --dir auth_pam.so $basedir/lib*/plugin $basedir/lib*/mysql/plugin $basedir/lib*/mariadb/plugin`
   pamtooldir=$plugindir
 # relative from where the script was run for a relocatable install
 elif test -n "$dirname0" -a -x "$rel_mysqld" -a ! "$rel_mysqld" -ef "@sbindir@/mysqld"