diff --git a/src/sensesp/system/semaphore_value.h b/src/sensesp/system/semaphore_value.h
index 2ac6e4760..5620ca03d 100644
--- a/src/sensesp/system/semaphore_value.h
+++ b/src/sensesp/system/semaphore_value.h
@@ -3,7 +3,7 @@
 
 #include "sensesp.h"
 
-#include <freeRTOS/semphr.h>
+#include <freertos/semphr.h>
 
 namespace sensesp {