diff --git a/net/ip/contiki/sicslowpan/null_compression.c b/net/ip/contiki/sicslowpan/null_compression.c
index e56b34b5cbd..fe1f9dda940 100644
--- a/net/ip/contiki/sicslowpan/null_compression.c
+++ b/net/ip/contiki/sicslowpan/null_compression.c
@@ -1,4 +1,4 @@
-/* compression.h - Header Compression */
+/* null_compression.c - null header compression */
 
 /*
  * Copyright (c) 2015 Intel Corporation
diff --git a/net/ip/contiki/sicslowpan/null_fragmentation.c b/net/ip/contiki/sicslowpan/null_fragmentation.c
index 2c722e005ee..5a79566456e 100644
--- a/net/ip/contiki/sicslowpan/null_fragmentation.c
+++ b/net/ip/contiki/sicslowpan/null_fragmentation.c
@@ -1,4 +1,4 @@
-/* compression.h - Header Compression */
+/* null_fragmentation.c - NULL packet fragmentation for 802.15.4 */
 
 /*
  * Copyright (c) 2015 Intel Corporation
diff --git a/net/ip/contiki/sicslowpan/null_fragmentation.h b/net/ip/contiki/sicslowpan/null_fragmentation.h
index b7594b5a037..842adef6e8f 100644
--- a/net/ip/contiki/sicslowpan/null_fragmentation.h
+++ b/net/ip/contiki/sicslowpan/null_fragmentation.h
@@ -1,4 +1,4 @@
-/* null_fragmentation.h - NULL fragmentation */
+/* null_fragmentation.h - NULL fragmentation for 802.15.4 */
 
 /*
  * Copyright (c) 2015 Intel Corporation
diff --git a/net/ip/contiki/sicslowpan/sicslowpan_compression.c b/net/ip/contiki/sicslowpan/sicslowpan_compression.c
index b6b01cd90f2..ce775df5e38 100644
--- a/net/ip/contiki/sicslowpan/sicslowpan_compression.c
+++ b/net/ip/contiki/sicslowpan/sicslowpan_compression.c
@@ -1,4 +1,4 @@
-/* compression.h - Header Compression */
+/* sicslowpan_compression.c - IPv6 header compression */
 
 /*
  * Copyright (c) 2015 Intel Corporation
diff --git a/net/ip/contiki/sicslowpan/sicslowpan_compression.h b/net/ip/contiki/sicslowpan/sicslowpan_compression.h
index 7965220e3e0..056b7142e5e 100644
--- a/net/ip/contiki/sicslowpan/sicslowpan_compression.h
+++ b/net/ip/contiki/sicslowpan/sicslowpan_compression.h
@@ -1,4 +1,4 @@
-/* null_compression.h - NULL header Compression */
+/* sicslowpan_compression.h - IPv6 header Compression */
 
 /*
  * Copyright (c) 2015 Intel Corporation
diff --git a/net/ip/contiki/sicslowpan/sicslowpan_fragmentation.c b/net/ip/contiki/sicslowpan/sicslowpan_fragmentation.c
index 9f81b44213b..0ffa633ca2e 100644
--- a/net/ip/contiki/sicslowpan/sicslowpan_fragmentation.c
+++ b/net/ip/contiki/sicslowpan/sicslowpan_fragmentation.c
@@ -1,4 +1,4 @@
-/* compression.h - Header Compression */
+/* sicslowpan_fragmentation.c - 802.15.4 6lowpan packet fragmentation */
 
 /*
  * Copyright (c) 2015 Intel Corporation
diff --git a/net/ip/contiki/sicslowpan/sicslowpan_fragmentation.h b/net/ip/contiki/sicslowpan/sicslowpan_fragmentation.h
index 3c60c00e7a5..7770f4c1f1b 100644
--- a/net/ip/contiki/sicslowpan/sicslowpan_fragmentation.h
+++ b/net/ip/contiki/sicslowpan/sicslowpan_fragmentation.h
@@ -1,4 +1,4 @@
-/* null_fragmentation.h - NULL fragmentation */
+/* sicslowpan_fragmentation.h - 802.15.4 6lowpan fragmentation */
 
 /*
  * Copyright (c) 2015 Intel Corporation