diff --git a/cpu/cc26xx/dev/cc26xx-rf.h b/cpu/cc26xx/dev/cc26xx-rf.h
index 4087a037d..a278e085d 100644
--- a/cpu/cc26xx/dev/cc26xx-rf.h
+++ b/cpu/cc26xx/dev/cc26xx-rf.h
@@ -66,7 +66,7 @@
 #define CC26XX_RF_AUTOACK 1
 #endif /* CC26XX_RF_CONF_AUTOACK */
 
-#if defined (CC26XX_RF_CONF_BLE_SUPPORT) && (CC26XX_MODEL_CPU_VARIANT == 2650)
+#if (CC26XX_RF_CONF_BLE_SUPPORT) && (CC26XX_MODEL_CPU_VARIANT == 2650)
 #define CC26XX_RF_BLE_SUPPORT CC26XX_RF_CONF_BLE_SUPPORT
 #else
 #define CC26XX_RF_BLE_SUPPORT 0