diff --git a/src/lexer.h b/src/lexer.h
index 1049c48..50fa2cd 100644
--- a/src/lexer.h
+++ b/src/lexer.h
@@ -207,8 +207,8 @@ typedef enum
 #define VERS_IFRAME        (VERS_HTML40_LOOSE|VERS_FRAMESET)
 #define VERS_LOOSE         (VERS_HTML20|VERS_HTML32|VERS_IFRAME)
 #define VERS_EVENTS        (VERS_HTML40|VERS_XHTML11)
-#define VERS_FROM32        (VERS_HTML32|VERS_HTML40)
-#define VERS_FROM40        (VERS_HTML40|VERS_XHTML11|VERS_BASIC)
+#define VERS_FROM32        (VERS_HTML32|VERS_HTML40|HT50)
+#define VERS_FROM40        (VERS_HTML40|VERS_XHTML11|VERS_BASIC|VERS_HTML5)
 #define VERS_XHTML         (X10S|X10T|X10F|XH11|XB10|XH50)
 
 /* strict */