diff --git a/os/nil/include/ch.h b/os/nil/include/ch.h
index 464219c45..aca77e2c8 100644
--- a/os/nil/include/ch.h
+++ b/os/nil/include/ch.h
@@ -1420,8 +1420,8 @@ struct nil_system {
  * @xclass
  */
 #define chTimeIsInRangeX(time, start, end)                                  \
-  ((bool)(((systime_t)(time) - (systime_t)(start)) <                        \
-          ((systime_t)(end) - (systime_t)(start))))
+  ((bool)((systime_t)((systime_t)(time) - (systime_t)(start)) <             \
+          (systime_t)((systime_t)(end) - (systime_t)(start))))
 
 /**
  * @brief   Function parameters check.