diff --git a/test/test_math/test_division.cpp b/test/test_math/test_division.cpp
index 5b78975d..d2f930ed 100644
--- a/test/test_math/test_division.cpp
+++ b/test/test_math/test_division.cpp
@@ -2,7 +2,7 @@
 #include "test_fp_support.h"
 #include "maths.h"
 #include "crankMaths.h"
-#include "..\timer.hpp"
+#include "../timer.hpp"
 
 
 template <typename T>
diff --git a/test/test_math/tests_percent.cpp b/test/test_math/tests_percent.cpp
index 45c3ee45..c74dd007 100644
--- a/test/test_math/tests_percent.cpp
+++ b/test/test_math/tests_percent.cpp
@@ -1,7 +1,7 @@
 #include <unity.h>
 #include "test_fp_support.h"
 #include "maths.h"
-#include "..\timer.hpp"
+#include "../timer.hpp"
 
 static void test_percent(uint8_t percent, uint16_t value) {
   assert_rounded_div((uint32_t)percent*value, 100, percentage(percent, value));
diff --git a/test/test_schedule_calcs/test_ign_calcs.cpp b/test/test_schedule_calcs/test_ign_calcs.cpp
index 46a0cda0..d23f2f89 100644
--- a/test/test_schedule_calcs/test_ign_calcs.cpp
+++ b/test/test_schedule_calcs/test_ign_calcs.cpp
@@ -3,7 +3,7 @@
 #include "test_calcs_common.h"
 #include "schedule_calcs.h"
 #include "crankMaths.h"
-#include "Decoders.h"
+#include "decoders.h"
 
 #define _countof(x) (sizeof(x) / sizeof (x[0]))