diff --git a/src/db_driver.c b/src/db_driver.c
index 1416e07..3fb843c 100644
--- a/src/db_driver.c
+++ b/src/db_driver.c
@@ -77,7 +77,13 @@ static int db_free_results_int(db_conn_t *con);
 static sb_arg_t db_args[] =
 {
   SB_OPT("db-driver", "specifies database driver to use "
-         "('help' to get list of available drivers)", NULL, STRING),
+         "('help' to get list of available drivers)",
+#ifdef USE_MYSQL
+         "mysql",
+#else
+         NULL,
+#endif
+         STRING),
   SB_OPT("db-ps-mode", "prepared statements usage mode {auto, disable}", "auto",
          STRING),
   SB_OPT("db-debug", "print database-specific debug information", "off", BOOL),
diff --git a/tests/t/help_drv_mysql.t b/tests/t/help_drv_mysql.t
index 5924d00..b0988f4 100644
--- a/tests/t/help_drv_mysql.t
+++ b/tests/t/help_drv_mysql.t
@@ -5,6 +5,9 @@ Skip test if the MySQL driver is not available.
   >   exit 80
   > fi
 
+  $ sysbench --help | grep -- '--db-driver'
+    --db-driver=STRING  specifies database driver to use ('help' to get list of available drivers) [mysql]
+
   $ sysbench --help | sed -n '/mysql options:/,/^$/p'
   mysql options:
     --mysql-host=[LIST,...]          MySQL server host [localhost]
diff --git a/tests/t/opt_help.t b/tests/t/opt_help.t
index 9a1fd87..3334394 100644
--- a/tests/t/opt_help.t
+++ b/tests/t/opt_help.t
@@ -50,7 +50,7 @@ separately.
   
   General database options:
   
-    --db-driver=STRING  specifies database driver to use ('help' to get list of available drivers)
+    --db-driver=STRING  specifies database driver to use \('help' to get list of available drivers\)( \[mysql\])? (re)
     --db-ps-mode=STRING prepared statements usage mode {auto, disable} [auto]
     --db-debug[=on|off] print database-specific debug information [off]