diff --git a/src/sys/net/api/api_lib.c b/src/sys/net/api/api_lib.c
index 5443b21..ed9100b 100644
--- a/src/sys/net/api/api_lib.c
+++ b/src/sys/net/api/api_lib.c
@@ -45,6 +45,7 @@
 
 #include "net/debug.h"
 
+#include "lib/kprintf.h"
 /*-----------------------------------------------------------------------------------*/
 struct
 netbuf *netbuf_new(void)
diff --git a/src/sys/net/net/shell.c b/src/sys/net/net/shell.c
index 34ec235..35b107c 100644
--- a/src/sys/net/net/shell.c
+++ b/src/sys/net/net/shell.c
@@ -42,6 +42,7 @@
 #include "net/api.h"
 #include "net/stats.h"
 
+#include "lib/kprintf.h"
 char *buffer = 0x0;
 
 #define ESUCCESS 0