diff --git a/syntax/sass.vim b/syntax/sass.vim
index 6d83072..c3b2e1e 100644
--- a/syntax/sass.vim
+++ b/syntax/sass.vim
@@ -40,9 +40,8 @@ syn match sassMixinName "[[:alnum:]_-]\+" contained nextgroup=sassCssAttribute
 syn match sassMixin  "^="               nextgroup=sassMixinName
 syn match sassMixin  "^\s*\zs@mixin"    nextgroup=sassMixinName skipwhite
 syn match sassMixing "^\s\+\zs+"        nextgroup=sassMixinName
-syn match sassMixing "^\s\+\zs@include" nextgroup=sassMixinName skipwhite
-syn match sassMixing "\%([{};]\s*\|^\)\@<=@include" nextgroup=sassMixinName skipwhite contained containedin=sassDefinition
-syn match sassExtend "^\s\+\zs@extend"
+syn match sassMixing "\%([{};]\s*\|^\s*\)\@<=@include" nextgroup=sassMixinName skipwhite
+syn match sassExtend "\%([{};]\s*\|^\s*\)\@<=@extend"
 
 syn match sassEscape     "^\s*\zs\\"
 syn match sassIdChar     "#[[:alnum:]_-]\@=" nextgroup=sassId