diff --git a/grammars/c.cson b/grammars/c.cson
index 5ad6ad9..baa7403 100644
--- a/grammars/c.cson
+++ b/grammars/c.cson
@@ -317,9 +317,6 @@
       {
         'include': '#preprocessor-rule-other-block'
       }
-      {
-        'include': '#sizeof'
-      }
       {
         'include': '#access'
       }