diff --git a/src/include/lwip/apps/mqtt.h b/src/include/lwip/apps/mqtt.h
index a1e28166..3d5e6f0e 100644
--- a/src/include/lwip/apps/mqtt.h
+++ b/src/include/lwip/apps/mqtt.h
@@ -57,7 +57,7 @@ struct altcp_tls_config;
 #define MQTT_PORT     LWIP_IANA_PORT_MQTT
 /** @ingroup mqtt
  * Default MQTT TLS port */
-#define MQTT_TLS_PORT LWIP_IANA_PORT_SEQURE_MQTT
+#define MQTT_TLS_PORT LWIP_IANA_PORT_SECURE_MQTT
 
 /*---------------------------------------------------------------------------------------------- */
 /* Connection with server */
diff --git a/src/include/lwip/prot/iana.h b/src/include/lwip/prot/iana.h
index 1a27b07d..b1b7f42b 100644
--- a/src/include/lwip/prot/iana.h
+++ b/src/include/lwip/prot/iana.h
@@ -83,7 +83,7 @@ enum lwip_iana_port_number {
   /** MDNS */
   LWIP_IANA_PORT_MDNS        = 5353,
   /** Secure MQTT */
-  LWIP_IANA_PORT_SEQURE_MQTT = 8883
+  LWIP_IANA_PORT_SECURE_MQTT = 8883
 };
 
 #endif /* LWIP_HDR_PROT_IANA_H */