diff --git a/lib/MySQL_HostGroups_Manager.cpp b/lib/MySQL_HostGroups_Manager.cpp
index 37912d4b0..cf520ed50 100644
--- a/lib/MySQL_HostGroups_Manager.cpp
+++ b/lib/MySQL_HostGroups_Manager.cpp
@@ -1789,7 +1789,7 @@ void MySQL_HostGroups_Manager::purge_mysql_servers_table() {
 	for (unsigned int i=0; i<MyHostGroups->len; i++) {
 		MyHGC *myhgc=(MyHGC *)MyHostGroups->index(i);
 		MySrvC *mysrvc=NULL;
-		for (int j=0; j<myhgc->mysrvs->servers->len; j++) {
+		for (unsigned int j=0; j<myhgc->mysrvs->servers->len; j++) {
 			mysrvc=myhgc->mysrvs->idx(j);
 			if (mysrvc->get_status() == MYSQL_SERVER_STATUS_OFFLINE_HARD) {
 				if (mysrvc->ConnectionsUsed->conns_length()==0 && mysrvc->ConnectionsFree->conns_length()==0) {
diff --git a/lib/MySQL_Thread.cpp b/lib/MySQL_Thread.cpp
index 0427b2617..c2a5762df 100644
--- a/lib/MySQL_Thread.cpp
+++ b/lib/MySQL_Thread.cpp
@@ -4354,7 +4354,7 @@ void MySQL_Thread::refresh_variables() {
 	REFRESH_VARIABLE_INT(eventslog_buffer_history_size);
 	{
 		int elmhs = mysql_thread___eventslog_buffer_history_size;
-		if (GloMyLogger->MyLogCB->getBufferSize() != elmhs) {
+		if (GloMyLogger->MyLogCB->getBufferSize() != static_cast<size_t>(elmhs)) {
 			GloMyLogger->MyLogCB->setBufferSize(elmhs);
 		}
 	}