diff --git a/test/emqx_router_SUITE.erl b/test/emqx_router_SUITE.erl
index b9d40810a..196b1678e 100644
--- a/test/emqx_router_SUITE.erl
+++ b/test/emqx_router_SUITE.erl
@@ -39,6 +39,7 @@ end_per_suite(_Config) ->
     emqx_ct_broker_helpers:run_teardown_steps().
 
 init_per_testcase(_TestCase, Config) ->
+    clear_tables(),
     Config.
 
 end_per_testcase(_TestCase, _Config) ->