diff --git a/syntax/eo.vim b/syntax/eo.vim
index e3602ec..c4f8eb3 100644
--- a/syntax/eo.vim
+++ b/syntax/eo.vim
@@ -11,7 +11,7 @@ syn keyword    eoType byte ubyte char short ushort int uint long ulong llong
 syn keyword    eoType ullong int8 uint8 int16 uint16 int32 uint32 int64 uint64
 syn keyword    eoType int128 uint128 size ssize intptr uintptr ptrdiff time
 syn keyword    eoType float double ldouble bool void
-syn keyword    eoType hash string list accessor array iterator
+syn keyword    eoType hash string list accessor array iterator future
 syn keyword    eoType any_value any_value_ptr stringshare promise void_ptr
 syn keyword    eoType __undefined_type
 
@@ -19,7 +19,7 @@ syn keyword    eoClassTypes class abstract interface mixin
 syn keyword    eoStructure struct enum var
 syn keyword    eoTypedef type
 syn keyword    eoImport import
-syn keyword    eoClassAttributes implements extends
+syn keyword    eoClassAttributes implements extends composite
 
 syn keyword    eoClassBodyLabels c_prefix event_prefix data contained
 syn keyword    eoClassBodyBlockOpener properties methods events constructors contained