diff --git a/syntax/php.vim b/syntax/php.vim
index e8e0eea..57559a3 100644
--- a/syntax/php.vim
+++ b/syntax/php.vim
@@ -531,8 +531,8 @@ endif
 
 " HereDoc
   syn case match
-  syn region phpHereDoc matchgroup=Delimiter start="\(<<<\)\@<=\z(\I\i*\)$" end="^\z1\(;\=$\)\@=" contained contains=phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpSpecialChar,phpMethodsVar,phpStrEsc keepend extend
-  syn region phpHereDoc matchgroup=Delimiter start=+\(<<<\)\@<="\z(\I\i*\)"$+ end="^\z1\(;\=$\)\@=" contained contains=phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpSpecialChar,phpMethodsVar,phpStrEsc keepend extend
+  syn region phpHereDoc matchgroup=Delimiter start="\(<<<\)\@<=\z(\I\i*\)$" end="^\z1\(;\=$\)\@=" contained contains=@Spell,phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpSpecialChar,phpMethodsVar,phpStrEsc keepend extend
+  syn region phpHereDoc matchgroup=Delimiter start=+\(<<<\)\@<="\z(\I\i*\)"$+ end="^\z1\(;\=$\)\@=" contained contains=@Spell,phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpSpecialChar,phpMethodsVar,phpStrEsc keepend extend
 " including HTML,JavaScript,SQL even if not enabled via options
   syn region phpHereDoc matchgroup=Delimiter start="\(<<<\)\@<=\z(\(\I\i*\)\=\(html\)\c\(\i*\)\)$" end="^\z1\(;\=$\)\@="  contained contains=@htmlTop,phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpSpecialChar,phpMethodsVar,phpStrEsc keepend extend
   syn region phpHereDoc matchgroup=Delimiter start="\(<<<\)\@<=\z(\(\I\i*\)\=\(sql\)\c\(\i*\)\)$" end="^\z1\(;\=$\)\@=" contained contains=@sqlTop,phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpSpecialChar,phpMethodsVar,phpStrEsc keepend extend