diff --git a/controller/controller.c b/controller/controller.c
index 0b10540..f9e606f 100644
--- a/controller/controller.c
+++ b/controller/controller.c
@@ -13,7 +13,9 @@
 #include <stdlib.h>
 
 #include "global.h"
+#ifndef RINGBUFFER_H
 #include "ringbuffer.h"
+#endif
 
 #define IIC_DEVICE "/dev/i2c-7"
 #define BUFFER_BLOCKS 128