diff --git a/firmware/basic/random.h b/firmware/basic/random.h
index 3ff72db..87c640e 100644
--- a/firmware/basic/random.h
+++ b/firmware/basic/random.h
@@ -1,6 +1,6 @@
 #ifndef _RANDOM_H_
 #define _RANDOM_H_
-
+#include <stdint.h>
 void randomInit(void);
 uint32_t getRandom(void);
 
diff --git a/firmware/basic/xxtea.h b/firmware/basic/xxtea.h
index da93394..1d0ffe0 100644
--- a/firmware/basic/xxtea.h
+++ b/firmware/basic/xxtea.h
@@ -1,8 +1,8 @@
 #ifndef _XXTEA_H_
 #define _XXTEA_H_
+#include <stdint.h>
 
-void xxtea_cbcmac(uint32_t mac[4], uint32_t *data,
-        uint32_t len, uint32_t const key[4]);
+void xxtea_cbcmac(uint32_t mac[4], uint32_t *data, uint32_t len, uint32_t const key[4]);
 void xxtea_encode_words(uint32_t *v, int n, uint32_t const k[4]);
 void xxtea_decode_words(uint32_t *v, int n, uint32_t const k[4]);