diff --git a/lib/MySQL_HostGroups_Manager.cpp b/lib/MySQL_HostGroups_Manager.cpp
index ec7c5dc9c9..8c3e562a26 100644
--- a/lib/MySQL_HostGroups_Manager.cpp
+++ b/lib/MySQL_HostGroups_Manager.cpp
@@ -4381,11 +4381,11 @@ void MySQL_HostGroups_Manager::p_update_connection_pool() {
 		status.p_connection_pool_status_map.erase(key);
 
 		gauge = status.p_connection_pool_conn_used_map[key];
-		status.p_dyn_gauge_array[p_hg_dyn_gauge::connection_pool_conn_free]->Remove(gauge);
+		status.p_dyn_gauge_array[p_hg_dyn_gauge::connection_pool_conn_used]->Remove(gauge);
 		status.p_connection_pool_conn_used_map.erase(key);
 
 		gauge = status.p_connection_pool_conn_free_map[key];
-		status.p_dyn_gauge_array[p_hg_dyn_gauge::connection_pool_conn_used]->Remove(gauge);
+		status.p_dyn_gauge_array[p_hg_dyn_gauge::connection_pool_conn_free]->Remove(gauge);
 		status.p_connection_pool_conn_free_map.erase(key);
 
 		gauge = status.p_connection_pool_latency_us_map[key];