diff --git a/src/test/unit/alignsensor_unittest.cc b/src/test/unit/alignsensor_unittest.cc
index f618f24fcd..4fcaaecef0 100644
--- a/src/test/unit/alignsensor_unittest.cc
+++ b/src/test/unit/alignsensor_unittest.cc
@@ -21,6 +21,7 @@
 
 extern "C" {
 #include "common/axis.h"
+#include "drivers/sensor.h"
 #include "sensors/boardalignment.h"
 #include "sensors/sensors.h"
 }