diff --git a/cmsis/TARGET_CORTEX_M/core_cm3.h b/cmsis/TARGET_CORTEX_M/core_cm3.h
index 74bff64be4..e84a9f5b7d 100644
--- a/cmsis/TARGET_CORTEX_M/core_cm3.h
+++ b/cmsis/TARGET_CORTEX_M/core_cm3.h
@@ -668,7 +668,7 @@ typedef struct
 #define SCnSCB_ICTR_INTLINESNUM_Msk        (0xFUL /*<< SCnSCB_ICTR_INTLINESNUM_Pos*/)  /*!< ICTR: INTLINESNUM Mask */
 
 /* Auxiliary Control Register Definitions */
-
+#if defined (__CM3_REV) && (__CM3_REV >= 0x200U)
 #define SCnSCB_ACTLR_DISFOLD_Pos            2U                                         /*!< ACTLR: DISFOLD Position */
 #define SCnSCB_ACTLR_DISFOLD_Msk           (1UL << SCnSCB_ACTLR_DISFOLD_Pos)           /*!< ACTLR: DISFOLD Mask */
 
@@ -677,6 +677,7 @@ typedef struct
 
 #define SCnSCB_ACTLR_DISMCYCINT_Pos         0U                                         /*!< ACTLR: DISMCYCINT Position */
 #define SCnSCB_ACTLR_DISMCYCINT_Msk        (1UL /*<< SCnSCB_ACTLR_DISMCYCINT_Pos*/)    /*!< ACTLR: DISMCYCINT Mask */
+#endif
 
 /*@} end of group CMSIS_SCnotSCB */