diff --git a/runtime/syntax/rmd.vim b/runtime/syntax/rmd.vim
index 4cde744..48fb5e0 100644
--- a/runtime/syntax/rmd.vim
+++ b/runtime/syntax/rmd.vim
@@ -1,7 +1,7 @@
 " markdown Text with R statements
 " Language: markdown with R code chunks
 " Homepage: https://github.com/jalvesaq/R-Vim-runtime
-" Last Change: Sat Feb 06, 2016  06:45AM
+" Last Change: Tue Jun 28, 2016  10:09AM
 "
 " CONFIGURATION:
 "   To highlight chunk headers as R code, put in your vimrc:
@@ -72,8 +72,6 @@
   hi def link rmdLaTeXRegDelim Special
 endif
 
-setlocal iskeyword=@,48-57,_,.
-
 syn sync match rmdSyncChunk grouphere rmdChunk "^[ \t]*``` *{r"
 
 hi def link rmdChunkDelim Special