diff --git a/boards/chronos/include/board.h b/boards/chronos/include/board.h
index f8861aa44c..633b13a4ba 100644
--- a/boards/chronos/include/board.h
+++ b/boards/chronos/include/board.h
@@ -41,12 +41,6 @@ extern "C" {
 #define XTIMER_MASK                 (0xffff0000)
 /** @} */
 
-/**
- * @brief   Defines for compatibility with hwtimer
- * @deprecated
- */
-#define HW_TIMER                    (0)
-
 /**
  * @brief   Standard input/output device configuration
  *