diff --git a/examples/slip-radio/slip-radio.c b/examples/slip-radio/slip-radio.c
index d4e9db1cf..a20bd8676 100644
--- a/examples/slip-radio/slip-radio.c
+++ b/examples/slip-radio/slip-radio.c
@@ -143,7 +143,7 @@ slip_radio_cmd_handler(const uint8_t *data, int len)
       packetbuf_clear();
       pos = packetutils_deserialize_atts(&data[3], len - 3);
       if(pos < 0) {
-        LOG_ERR("slip-radio: illegal packet attributes\n");
+        LOG_ERR("illegal packet attributes\n");
         return 1;
       }
       pos += 3;
@@ -154,7 +154,7 @@ slip_radio_cmd_handler(const uint8_t *data, int len)
       memcpy(packetbuf_dataptr(), &data[pos], len);
       packetbuf_set_datalen(len);
 
-      LOG_DBG("slip-radio: sending %u (%d bytes)\n",
+      LOG_DBG("sending %u (%d bytes)\n",
               data[2], packetbuf_datalen());
 
       /* parse frame before sending to get addresses, etc. */
diff --git a/os/net/ipv6/sicslowpan.c b/os/net/ipv6/sicslowpan.c
index 200068b03..9e4e3a8b4 100644
--- a/os/net/ipv6/sicslowpan.c
+++ b/os/net/ipv6/sicslowpan.c
@@ -1664,11 +1664,12 @@ output(const linkaddr_t *localdest)
     }
 
     int freebuf = queuebuf_numfree() - 1;
-    LOG_INFO("output: fragmentation needed, fragments: %d, free queuebufs: %d\n",
+    LOG_INFO("output: fragmentation needed, fragments: %u, free queuebufs: %u\n",
+      fragment_count, freebuf);
 
-    fragment_count, freebuf);
     if(freebuf < fragment_count) {
-      LOG_WARN("output: dropping packet, not enough free bufs\n");
+      LOG_WARN("output: dropping packet, not enough free bufs (needed: %u, free: %u)\n",
+        fragment_count, freebuf);
       return 0;
     }
 
diff --git a/os/services/rpl-border-router/native/border-router-mac.c b/os/services/rpl-border-router/native/border-router-mac.c
index 1d6cbce97..fbf8b6496 100644
--- a/os/services/rpl-border-router/native/border-router-mac.c
+++ b/os/services/rpl-border-router/native/border-router-mac.c
@@ -47,7 +47,7 @@
 /*---------------------------------------------------------------------------*/
 /* Log configuration */
 #include "sys/log.h"
-#define LOG_MODULE "BR"
+#define LOG_MODULE "BR-MAC"
 #define LOG_LEVEL LOG_LEVEL_NONE
 
 #define MAX_CALLBACKS 16
@@ -112,11 +112,11 @@ send_packet(mac_callback_t sent, void *ptr)
   /* Will make it send only DATA packets... for now */
   packetbuf_set_attr(PACKETBUF_ATTR_FRAME_TYPE, FRAME802154_DATAFRAME);
 
-  LOG_INFO("br-rdc: sending packet (%u bytes)\n", packetbuf_datalen());
+  LOG_INFO("sending packet (%u bytes)\n", packetbuf_datalen());
 
   if(NETSTACK_FRAMER.create() < 0) {
     /* Failed to allocate space for headers */
-    LOG_WARN("br-rdc: send failed, too large header\n");
+    LOG_WARN("send failed, too large header\n");
     mac_call_sent_callback(sent, ptr, MAC_TX_ERR_FATAL, 1);
   } else {
     /* here we send the data over SLIP to the radio-chip */
@@ -125,7 +125,7 @@ send_packet(mac_callback_t sent, void *ptr)
     size = packetutils_serialize_atts(&buf[3], sizeof(buf) - 3);
 #endif
     if(size < 0 || size + packetbuf_totlen() + 3 > sizeof(buf)) {
-      LOG_WARN("br-rdc: send failed, too large header\n");
+      LOG_WARN("send failed, too large header\n");
       mac_call_sent_callback(sent, ptr, MAC_TX_ERR_FATAL, 1);
     } else {
       sid = setup_callback(sent, ptr);
@@ -146,7 +146,7 @@ static void
 packet_input(void)
 {
   if(NETSTACK_FRAMER.parse() < 0) {
-    LOG_DBG("br-rdc: failed to parse %u\n", packetbuf_datalen());
+    LOG_DBG("failed to parse %u\n", packetbuf_datalen());
   } else {
     NETSTACK_NETWORK.input();
   }