diff --git a/encoding2.c b/encoding2.c
index 924a59a..f6b7242 100644
--- a/encoding2.c
+++ b/encoding2.c
@@ -423,7 +423,7 @@ unsigned objc_get_type_qualifiers (const char *type)
 			MAP('o', 2)
 			MAP('N', 3)
 			MAP('O', 4)
-			MAP('V', 8)
+			MAP('V', 10)
 			MAP('R', 8)
 		}
 	} while (1);
diff --git a/objc/encoding.h b/objc/encoding.h
index cc8b710..52f03c6 100644
--- a/objc/encoding.h
+++ b/objc/encoding.h
@@ -61,7 +61,6 @@ void objc_layout_structure_get_info (struct objc_struct_layout *layout,
 #define _F_OUT         0x02
 #define _F_INOUT       0x03
 #define _F_BYCOPY      0x04
-#define _F_ONEWAY      0x08
 #define _F_BYREF       0x08
 #define _F_ONEWAY      0x10
 #define _F_GCINVISIBLE 0x20