diff --git a/runtime/syntax/sh.vim b/runtime/syntax/sh.vim
index 18da779..6048aed 100644
--- a/runtime/syntax/sh.vim
+++ b/runtime/syntax/sh.vim
@@ -381,7 +381,7 @@
 
 " Here Strings: {{{1
 " =============
-" available for: bash; ksh (really should be ksh93 only) but not if its a posix
+" available for: bash; ksh (really should be ksh93 only) but not if it's a posix
 if exists("b:is_bash") || (exists("b:is_kornshell") && !exists("g:is_posix"))
  syn match shHereString "<<<"	skipwhite	nextgroup=shCmdParenRegion
 endif