diff --git a/arch/cpu/cc2538/cc2538-def.h b/arch/cpu/cc2538/cc2538-def.h
index 11baef4ec..3d678053e 100644
--- a/arch/cpu/cc2538/cc2538-def.h
+++ b/arch/cpu/cc2538/cc2538-def.h
@@ -58,5 +58,8 @@
 #define TSCH_CONF_HW_FRAME_FILTERING  0
 #endif /* MAC_CONF_WITH_TSCH */
 /*---------------------------------------------------------------------------*/
+/* Path to CMSIS header */
+#define CMSIS_CONF_HEADER_PATH               "cc2538_cm3.h"
+/*---------------------------------------------------------------------------*/
 #endif /* CC2538_DEF_H_ */
 /*---------------------------------------------------------------------------*/
diff --git a/arch/cpu/cc26xx-cc13xx/cc13xx-cc26xx-def.h b/arch/cpu/cc26xx-cc13xx/cc13xx-cc26xx-def.h
index 283738ffe..6a603c762 100644
--- a/arch/cpu/cc26xx-cc13xx/cc13xx-cc26xx-def.h
+++ b/arch/cpu/cc26xx-cc13xx/cc13xx-cc26xx-def.h
@@ -93,5 +93,8 @@
 /*---------------------------------------------------------------------------*/
 #define RTIMER_ARCH_SECOND 65536
 /*---------------------------------------------------------------------------*/
+/* Path to CMSIS header */
+#define CMSIS_CONF_HEADER_PATH               "cc13x0-cc26x0-cm3.h"
+/*---------------------------------------------------------------------------*/
 #endif /* CC13XX_CC26XX_DEF_H_ */
 /*---------------------------------------------------------------------------*/