diff --git a/controller/ringbuffer.c b/controller/ringbuffer.c
index 755a1cc..03c76cd 100644
--- a/controller/ringbuffer.c
+++ b/controller/ringbuffer.c
@@ -1,3 +1,5 @@
+#include "ringbuffer.h"
+
 void _ringBufferIncReader(struct ringBuffer *buf) {
   buf->reader += buf->blockSize;
   if (buf->reader >= buf->buffer + buf->blocks * buf->blockSize) {
diff --git a/controller/ringbuffer.h b/controller/ringbuffer.h
index 9168b6d..4c19bd3 100644
--- a/controller/ringbuffer.h
+++ b/controller/ringbuffer.h
@@ -1,4 +1,6 @@
 #include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
 
 #ifdef RINGBUFFER_THREAD_SAFE
 #include <pthread.h>