diff --git a/examples/zolertia/zoul/cc1200-demo/cc1200-demo.c b/examples/zolertia/zoul/cc1200-demo/cc1200-demo.c
index 1262af1d1..1fe69f58c 100644
--- a/examples/zolertia/zoul/cc1200-demo/cc1200-demo.c
+++ b/examples/zolertia/zoul/cc1200-demo/cc1200-demo.c
@@ -64,8 +64,8 @@ broadcast_recv(struct broadcast_conn *c, const linkaddr_t *from)
 {
   printf("*** Received %u bytes from %u:%u: '0x%04u' ", packetbuf_datalen(),
          from->u8[0], from->u8[1], *(uint16_t *)packetbuf_dataptr());
-  printf("%d - %u\n", (int8_t) packetbuf_attr(PACKETBUF_ATTR_RSSI), 
-                      packetbuf_attr(PACKETBUF_ATTR_LINK_QUALITY));
+  printf("%d - %u\n", (int8_t)packetbuf_attr(PACKETBUF_ATTR_RSSI),
+         packetbuf_attr(PACKETBUF_ATTR_LINK_QUALITY));
   leds_toggle(LEDS_GREEN);
 }
 /*---------------------------------------------------------------------------*/
diff --git a/examples/zolertia/zoul/cc1200-demo/project-conf.h b/examples/zolertia/zoul/cc1200-demo/project-conf.h
index 66797e7d6..9367973ff 100644
--- a/examples/zolertia/zoul/cc1200-demo/project-conf.h
+++ b/examples/zolertia/zoul/cc1200-demo/project-conf.h
@@ -55,7 +55,7 @@
 
 #endif /* PROJECT_CONF_H_ */
 
-/** 
+/**
+ * @}
  * @}
- * @} 
  */
diff --git a/examples/zolertia/zoul/zoul-demo.c b/examples/zolertia/zoul/zoul-demo.c
index aabe38313..a42ef2507 100644
--- a/examples/zolertia/zoul/zoul-demo.c
+++ b/examples/zolertia/zoul/zoul-demo.c
@@ -154,7 +154,7 @@ PROCESS_THREAD(zoul_demo_process, ev, data)
              adc_sensors.value(ZOUL_SENSORS_ADC1));
 
       printf("ADC3 = %d raw\n",
-    		  adc_sensors.value(ZOUL_SENSORS_ADC3));
+             adc_sensors.value(ZOUL_SENSORS_ADC3));
 
       etimer_set(&et, LOOP_INTERVAL);
       rtimer_set(&rt, RTIMER_NOW() + LEDS_OFF_HYSTERISIS, 1,