diff --git a/sys/include/net/sock/ip.h b/sys/include/net/sock/ip.h
index ee4f659cfe..9e55f04459 100644
--- a/sys/include/net/sock/ip.h
+++ b/sys/include/net/sock/ip.h
@@ -25,7 +25,6 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ {.c}
  * #include <stdio.h>
  *
- * #include "net/af.h"
  * #include "net/protnum.h"
  * #include "net/sock/ip.h"
  *
diff --git a/sys/include/net/sock/tcp.h b/sys/include/net/sock/tcp.h
index d3d987e182..a1151d2c53 100644
--- a/sys/include/net/sock/tcp.h
+++ b/sys/include/net/sock/tcp.h
@@ -23,7 +23,6 @@
  * ### A Simple TCP Echo Server
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ {.c}
- * #include "net/af.h"
  * #include "net/sock/tcp.h"
  *
  * #define SOCK_QUEUE_LEN  (1U)
diff --git a/sys/include/net/sock/udp.h b/sys/include/net/sock/udp.h
index b774b7dd34..b884154a2f 100644
--- a/sys/include/net/sock/udp.h
+++ b/sys/include/net/sock/udp.h
@@ -25,7 +25,6 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ {.c}
  * #include <stdio.h>
  *
- * #include "net/af.h"
  * #include "net/sock/udp.h"
  *
  * uint8_t buf[128];
diff --git a/sys/net/gnrc/sock/include/sock_types.h b/sys/net/gnrc/sock/include/sock_types.h
index 1e86b0c375..a72b17c802 100644
--- a/sys/net/gnrc/sock/include/sock_types.h
+++ b/sys/net/gnrc/sock/include/sock_types.h
@@ -24,7 +24,9 @@
 
 #include <stdbool.h>
 #include <stdint.h>
+
 #include "mbox.h"
+#include "net/af.h"
 #include "net/gnrc.h"
 #include "net/gnrc/netreg.h"
 #include "net/sock/ip.h"
diff --git a/tests/gnrc_sock_ip/main.c b/tests/gnrc_sock_ip/main.c
index f4c6c0774b..29d3b49f47 100644
--- a/tests/gnrc_sock_ip/main.c
+++ b/tests/gnrc_sock_ip/main.c
@@ -22,7 +22,6 @@
 #include <stdint.h>
 #include <stdio.h>
 
-#include "net/af.h"
 #include "net/sock/ip.h"
 #include "xtimer.h"
 
diff --git a/tests/gnrc_sock_udp/main.c b/tests/gnrc_sock_udp/main.c
index 043eae3e26..d91205171b 100644
--- a/tests/gnrc_sock_udp/main.c
+++ b/tests/gnrc_sock_udp/main.c
@@ -22,7 +22,6 @@
 #include <stdint.h>
 #include <stdio.h>
 
-#include "net/af.h"
 #include "net/sock/udp.h"
 #include "xtimer.h"