Runtime files update.
diff --git a/runtime/syntax/murphi.vim b/runtime/syntax/murphi.vim
index b2faa8c..347e17f 100644
--- a/runtime/syntax/murphi.vim
+++ b/runtime/syntax/murphi.vim
@@ -1,7 +1,7 @@
" Vim syntax file
" Language: Murphi model checking language
" Maintainer: Matthew Fernandez <matthew.fernandez@gmail.com>
-" Last Change: 2017 Aug 27
+" Last Change: 2019 Aug 27
" Version: 2
" Remark: Originally authored by Diego Ongaro <ongaro@cs.stanford.edu>
@@ -61,7 +61,6 @@
syn keyword murphiFunction multisetremove
syn keyword murphiFunction multisetremovepred
syn keyword murphiKeyword procedure
-syn keyword murphiKeyword process
syn keyword murphiKeyword program
syn keyword murphiKeyword put
syn keyword murphiStructure record
@@ -89,7 +88,7 @@
" Operators and special characters.
syn match murphiOperator "[\+\-\*\/%&|=!<>:\?]\|\."
-syn match murphiDelimiter "\(:[^=]\|[;,]\)"
+syn match murphiDelimiter "\(:=\@!\|[;,]\)"
syn match murphiSpecial "[()\[\]]"
" Double equal sign is a common error: use one equal sign for equality testing.