diff --git a/mysql-test/extra/rpl_tests/rpl_flsh_tbls.test b/mysql-test/extra/rpl_tests/rpl_flsh_tbls.test
index 8406c10af9b..7a097fd1eae 100644
--- a/mysql-test/extra/rpl_tests/rpl_flsh_tbls.test
+++ b/mysql-test/extra/rpl_tests/rpl_flsh_tbls.test
@@ -4,8 +4,6 @@
 # Test of FLUSH NO_WRITE_TO_BINLOG by the way.
 #
 
-# Merge will not work with a default ndb engine
--- source include/not_ndb_default.inc
 
 -- source include/master-slave.inc
 
diff --git a/mysql-test/t/rpl_multi_engine.test b/mysql-test/t/rpl_multi_engine.test
index 9ebbdfe27de..10780c765f7 100644
--- a/mysql-test/t/rpl_multi_engine.test
+++ b/mysql-test/t/rpl_multi_engine.test
@@ -1,6 +1,7 @@
 # See if replication between MyISAM, MEMORY and InnoDB works.
 
-# Results files do not match when ndb is default
+#This test case is not written for NDB, result files do not 
+#match when NDB is the default engine
 -- source include/not_ndb_default.inc
 
 -- source include/master-slave.inc
diff --git a/mysql-test/t/rpl_row_basic_11bugs.test b/mysql-test/t/rpl_row_basic_11bugs.test
index f0a66acc681..3a686ea6b3d 100644
--- a/mysql-test/t/rpl_row_basic_11bugs.test
+++ b/mysql-test/t/rpl_row_basic_11bugs.test
@@ -1,7 +1,9 @@
 --source include/have_row_based.inc
 --source include/have_binlog_format_row.inc
 
-# Show binlog events will cause failure when ndb is default
+
+#This test case is not written for NDB, the result files 
+#will not match when NDB is the default engine
 -- source include/not_ndb_default.inc
 
 --source include/master-slave.inc
diff --git a/mysql-test/t/rpl_row_flsh_tbls.test b/mysql-test/t/rpl_row_flsh_tbls.test
index 1a81da39896..9e8efc1ac9c 100644
--- a/mysql-test/t/rpl_row_flsh_tbls.test
+++ b/mysql-test/t/rpl_row_flsh_tbls.test
@@ -6,6 +6,11 @@ let $rename_event_pos= 615;
 # Bug#18326: Do not lock table for writing during prepare of statement
 # The use of the ps protocol causes extra table maps in the binlog, so
 # we disable the ps-protocol for this statement.
+
+# Merge tables are not supported in NDB
+-- source include/not_ndb_default.inc
+
+
 --disable_ps_protocol
 -- source extra/rpl_tests/rpl_flsh_tbls.test
 --enable_ps_protocol