diff --git a/server/core/service.c b/server/core/service.c
index 1bfa80177..8432898b0 100644
--- a/server/core/service.c
+++ b/server/core/service.c
@@ -980,6 +980,7 @@ SERVICE	*ptr;
 	}
 	while (ptr)
 	{
+		ss_dassert(ptr->stats.n_current >= 0);
 		dcb_printf(dcb, "%-25s | %-20s | %6d | %5d\n",
 			ptr->name, ptr->routerModule,
 			ptr->stats.n_current, ptr->stats.n_sessions);
diff --git a/server/modules/routing/readwritesplit/readwritesplit.c b/server/modules/routing/readwritesplit/readwritesplit.c
index 1f5c77bab..5912d1301 100644
--- a/server/modules/routing/readwritesplit/readwritesplit.c
+++ b/server/modules/routing/readwritesplit/readwritesplit.c
@@ -1402,7 +1402,8 @@ static route_target_t get_route_target (
 		QUERY_IS_TYPE(qtype, QUERY_TYPE_GSYSVAR_READ))) /*< read global sys var */
 	{
 		/** First set expected targets before evaluating hints */
-		if (QUERY_IS_TYPE(qtype, QUERY_TYPE_READ) ||
+		if (!QUERY_IS_TYPE(qtype, QUERY_TYPE_MASTER_READ) &&
+			QUERY_IS_TYPE(qtype, QUERY_TYPE_READ) ||
 			QUERY_IS_TYPE(qtype, QUERY_TYPE_SHOW_TABLES) || /*< 'SHOW TABLES' */
 			/** Configured to allow reading variables from slaves */
 			(use_sql_variables_in == TYPE_ALL && 
@@ -1412,7 +1413,8 @@ static route_target_t get_route_target (
 		{
 			target = TARGET_SLAVE;
 		}
-		else if (QUERY_IS_TYPE(qtype, QUERY_TYPE_EXEC_STMT)	||
+		else if (QUERY_IS_TYPE(qtype, QUERY_TYPE_MASTER_READ) ||
+			QUERY_IS_TYPE(qtype, QUERY_TYPE_EXEC_STMT)	||
 			/** Configured not to allow reading variables from slaves */
 			(use_sql_variables_in == TYPE_MASTER && 
 			(QUERY_IS_TYPE(qtype, QUERY_TYPE_USERVAR_READ)	||