diff --git a/apps/emqx_bridge/src/emqx_bridge_api.erl b/apps/emqx_bridge/src/emqx_bridge_api.erl
index 8f36fd700..262ada984 100644
--- a/apps/emqx_bridge/src/emqx_bridge_api.erl
+++ b/apps/emqx_bridge/src/emqx_bridge_api.erl
@@ -49,7 +49,7 @@
 -export([lookup_from_local_node/2]).
 -export([get_metrics_from_local_node/2]).
 
-%% only for testting/mocking
+%% only for testing/mocking
 -export([supported_versions/1]).
 
 -define(BPAPI_NAME, emqx_bridge).