diff --git a/include/winbase.h b/include/winbase.h
index 7b99424fc1285825bc2f94c1bbc43866b8fedd8e..c38da9c158a39618fded5e32c6e1f92b80c4eef3 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -1194,6 +1194,7 @@ typedef struct COPYFILE2_EXTENDED_PARAMETERS
 #define FS_PERSISTENT_ACLS              FILE_PERSISTENT_ACLS
 #define FS_VOL_IS_COMPRESSED            FILE_VOLUME_IS_COMPRESSED
 #define FS_FILE_COMPRESSION             FILE_FILE_COMPRESSION
+#define FS_FILE_ENCRYPTION              FILE_SUPPORTS_ENCRYPTION
 
 #define MUTEX_MODIFY_STATE              MUTANT_QUERY_STATE
 #define MUTEX_ALL_ACCESS                MUTANT_ALL_ACCESS