diff --git a/include/mycss/selectors/myosi.h b/include/mycss/selectors/myosi.h
index 525bf00..3fe9272 100644
--- a/include/mycss/selectors/myosi.h
+++ b/include/mycss/selectors/myosi.h
@@ -112,7 +112,8 @@ enum mycss_selectors_sub_type_pseudo_class_function {
     MyCSS_SELECTORS_SUB_TYPE_PSEUDO_CLASS_FUNCTION_NTH_LAST_COLUMN  = 0x0c,
     MyCSS_SELECTORS_SUB_TYPE_PSEUDO_CLASS_FUNCTION_NTH_LAST_OF_TYPE = 0x0d,
     MyCSS_SELECTORS_SUB_TYPE_PSEUDO_CLASS_FUNCTION_NTH_OF_TYPE      = 0x0e,
-    MyCSS_SELECTORS_SUB_TYPE_PSEUDO_CLASS_FUNCTION_LAST_ENTRY       = 0x0f
+    MyCSS_SELECTORS_SUB_TYPE_PSEUDO_CLASS_FUNCTION_CONTAINS         = 0x0f,
+    MyCSS_SELECTORS_SUB_TYPE_PSEUDO_CLASS_FUNCTION_LAST_ENTRY       = 0x10
 }
 typedef mycss_selectors_sub_type_pseudo_class_function_t;