diff --git a/hal/phydm/phydm_types.h b/hal/phydm/phydm_types.h
index a5382fb..90be597 100644
--- a/hal/phydm/phydm_types.h
+++ b/hal/phydm/phydm_types.h
@@ -217,9 +217,9 @@ typedef enum _RT_SPINLOCK_TYPE{
 	#endif
 	
 
-	#if defined(CONFIG_LITTLE_ENDIAN)	
+	#if defined(__LITTLE_ENDIAN)	
 		#define	ODM_ENDIAN_TYPE			ODM_ENDIAN_LITTLE
-	#elif defined (CONFIG_BIG_ENDIAN)
+	#else
 		#define	ODM_ENDIAN_TYPE			ODM_ENDIAN_BIG
 	#endif