diff --git a/syntax/eo.vim b/syntax/eo.vim
index 452d311..f3402fa 100644
--- a/syntax/eo.vim
+++ b/syntax/eo.vim
@@ -17,13 +17,13 @@ syn keyword    eoClassBodyLabels legacy_prefix eo_prefix data contained
 syn keyword    eoClassBodyBlockOpener properties methods events constructors implements contained
 
 syn keyword    eoInnerBlockOpener set get keys values params contained
-syn keyword    eoTypeClass const own contained
+syn keyword    eoTypeClass const own free contained
 syn keyword    functionKeywords constructor destructor finalize virtual legacy func
 syn keyword    eoStatements return
 
 " syn match      className               "\(\w\+\.\)\+\w\+"
 
-syn match      attributes              "@\(inout\|out\|in\|class\|constructor\|extern\|protected\|const\|nonull\|warn_unused\|private\)"
+syn match      attributes              "@\(inout\|out\|in\|class\|free\|constructor\|extern\|protected\|const\|nonull\|warn_unused\|private\)"
 
 syn match eoLabelMatch   "\w\+:" contains=eoClassBodyLabels
 syn match eoBlockOpener  "\w\+\s*{" contains=eoClassBodyBlockOpener,eoInnerBlockOpener