diff --git a/src/main/blackbox/blackbox.c b/src/main/blackbox/blackbox.c
index 0ee1234768..a8db32f82d 100644
--- a/src/main/blackbox/blackbox.c
+++ b/src/main/blackbox/blackbox.c
@@ -26,6 +26,7 @@
 #include "common/maths.h"
 #include "common/axis.h"
 #include "common/color.h"
+#include "common/utils.h"
 
 #include "drivers/gpio.h"
 #include "drivers/sensor.h"
@@ -86,11 +87,6 @@
     typedef char assert_failed_ ## name [(condition) ? 1 : -1 ]
 
 // Some macros to make writing FLIGHT_LOG_FIELD_* constants shorter:
-#define STR_HELPER(x) #x
-#define STR(x) STR_HELPER(x)
-
-#define CONCAT_HELPER(x,y) x ## y
-#define CONCAT(x,y) CONCAT_HELPER(x, y)
 
 #define PREDICT(x) CONCAT(FLIGHT_LOG_FIELD_PREDICTOR_, x)
 #define ENCODING(x) CONCAT(FLIGHT_LOG_FIELD_ENCODING_, x)
diff --git a/src/main/common/utils.h b/src/main/common/utils.h
index d9f22c01e9..90e12ac759 100644
--- a/src/main/common/utils.h
+++ b/src/main/common/utils.h
@@ -21,6 +21,12 @@
 
 #define ARRAYLEN(x) (sizeof(x) / sizeof((x)[0]))
 
+#define CONCAT_HELPER(x,y) x ## y
+#define CONCAT(x,y) CONCAT_HELPER(x, y)
+
+#define STR_HELPER(x) #x
+#define STR(x) STR_HELPER(x)
+
 /*
 http://resnet.uoregon.edu/~gurney_j/jmpc/bitwise.html
 */