diff --git a/thrift.vim b/thrift.vim
index 115e936..e2cfa9b 100644
--- a/thrift.vim
+++ b/thrift.vim
@@ -30,7 +30,7 @@
 syn match thriftNumber "-\=\<\d\+\>" contained
 
 " Keywords
-syn keyword thriftKeyword namespace cocoa_prefix
+syn keyword thriftKeyword namespace
 syn keyword thriftKeyword csharp_namespace
 syn keyword thriftKeyword php_namespace ruby_namespace py_module perl_package
 syn keyword thriftKeyword xsd_all xsd_optional xsd_nillable xsd_namespace xsd_attrs