diff --git a/server/core/gateway_mysql_protocol.c b/server/core/gateway_mysql_protocol.c
index 65ff4cf2e..4cf3faef8 100644
--- a/server/core/gateway_mysql_protocol.c
+++ b/server/core/gateway_mysql_protocol.c
@@ -70,7 +70,6 @@ MySQLProtocol *gw_mysql_init(MySQLProtocol *data) {
         }
         input->protocol_chk_top = CHK_NUM_PROTOCOL;
         input->protocol_chk_tail = CHK_NUM_PROTOCOL;
-        simple_mutex_init(&input->protocol_mutex, "MySQL Protocol mutex");
 #ifdef MYSQL_CONN_DEBUG
 	fprintf(stderr, "gw_mysql_init() called\n");
 #endif
diff --git a/server/modules/include/mysql_client_server_protocol.h b/server/modules/include/mysql_client_server_protocol.h
index 6307b6e72..13aac23f5 100644
--- a/server/modules/include/mysql_client_server_protocol.h
+++ b/server/modules/include/mysql_client_server_protocol.h
@@ -114,7 +114,6 @@ typedef enum {
  */
 typedef struct {
         skygw_chk_t     protocol_chk_top;
-        simple_mutex_t  protocol_mutex;
 	int		fd;                             /* The socket descriptor */
  	struct dcb	*descriptor;                    /** The DCB of the socket
                                                          * we are running on */
diff --git a/server/modules/protocol/mysql_common.c b/server/modules/protocol/mysql_common.c
index f39bce925..4d5c031b3 100644
--- a/server/modules/protocol/mysql_common.c
+++ b/server/modules/protocol/mysql_common.c
@@ -65,7 +65,6 @@ MySQLProtocol *gw_mysql_init(MySQLProtocol *data) {
         }
         input->protocol_chk_top = CHK_NUM_PROTOCOL;
         input->protocol_chk_tail = CHK_NUM_PROTOCOL;
-        simple_mutex_init(&input->protocol_mutex, "MySQL Protocol mutex");
                 
 #ifdef MYSQL_CONN_DEBUG
 	fprintf(stderr, "gw_mysql_init() called\n");