diff --git a/maxscale-system-test/mdbci/cnf/galera_server1.cnf b/maxscale-system-test/mdbci/cnf/galera_server1.cnf
index b2b736319..ef833fd05 100644
--- a/maxscale-system-test/mdbci/cnf/galera_server1.cnf
+++ b/maxscale-system-test/mdbci/cnf/galera_server1.cnf
@@ -7,7 +7,7 @@ wsrep_on=ON
 # Row binary log format is required by Galera
 binlog_format=ROW
 
-log-bin
+log-bin=mar-bin
 
 # InnoDB is currently the only storage engine supported by Galera
 default-storage-engine=innodb
diff --git a/maxscale-system-test/mdbci/cnf/galera_server2.cnf b/maxscale-system-test/mdbci/cnf/galera_server2.cnf
index da7130a92..0df6aa09c 100644
--- a/maxscale-system-test/mdbci/cnf/galera_server2.cnf
+++ b/maxscale-system-test/mdbci/cnf/galera_server2.cnf
@@ -7,7 +7,7 @@ wsrep_on=ON
 # Row binary log format is required by Galera
 binlog_format=ROW
 
-log-bin
+log-bin=mar-bin
 
 # InnoDB is currently the only storage engine supported by Galera
 default-storage-engine=innodb
diff --git a/maxscale-system-test/mdbci/cnf/galera_server3.cnf b/maxscale-system-test/mdbci/cnf/galera_server3.cnf
index 623760a02..efc663255 100644
--- a/maxscale-system-test/mdbci/cnf/galera_server3.cnf
+++ b/maxscale-system-test/mdbci/cnf/galera_server3.cnf
@@ -7,7 +7,7 @@ wsrep_on=ON
 # Row binary log format is required by Galera
 binlog_format=ROW
 
-log-bin
+log-bin=mar-bin
 
 # InnoDB is currently the only storage engine supported by Galera
 default-storage-engine=innodb
diff --git a/maxscale-system-test/mdbci/cnf/galera_server4.cnf b/maxscale-system-test/mdbci/cnf/galera_server4.cnf
index 41fcf9da5..4a13b1776 100644
--- a/maxscale-system-test/mdbci/cnf/galera_server4.cnf
+++ b/maxscale-system-test/mdbci/cnf/galera_server4.cnf
@@ -7,7 +7,7 @@ wsrep_on=ON
 # Row binary log format is required by Galera
 binlog_format=ROW
 
-log-bin
+log-bin=mar-bin
 
 # InnoDB is currently the only storage engine supported by Galera
 default-storage-engine=innodb