diff --git a/os/nil/include/ch.h b/os/nil/include/ch.h
index 31ec8bfe3..dc8dac6f0 100644
--- a/os/nil/include/ch.h
+++ b/os/nil/include/ch.h
@@ -617,6 +617,11 @@ struct nil_system {
 #define _dbg_leave_lock() (nil.lock_cnt = (cnt_t)0)
 #endif
 
+/**
+ * @brief   Utility to make the parameter a quoted string.
+ */
+#define __CH_STRINGIFY(a) #a
+
 /**
  * @name    Threads tables definition macros
  * @{
diff --git a/os/rt/include/chsystypes.h b/os/rt/include/chsystypes.h
index 50d963f95..527ff2e8b 100644
--- a/os/rt/include/chsystypes.h
+++ b/os/rt/include/chsystypes.h
@@ -115,6 +115,11 @@ typedef struct ch_system ch_system_t;
 /* Module macros.                                                            */
 /*===========================================================================*/
 
+/**
+ * @brief   Utility to make the parameter a quoted string.
+ */
+#define __CH_STRINGIFY(a) #a
+
 /*===========================================================================*/
 /* External declarations.                                                    */
 /*===========================================================================*/