diff --git a/data/plugins/detectindent.lua b/data/plugins/detectindent.lua
index 405a5243..ee03f034 100644
--- a/data/plugins/detectindent.lua
+++ b/data/plugins/detectindent.lua
@@ -76,9 +76,9 @@ end
 
 
 local function get_comment_patterns(syntax)
-  if syntax.name and comments_cache[syntax.name] then
-    if #comments_cache[syntax.name] > 0 then
-      return comments_cache[syntax.name]
+  if comments_cache[syntax] then
+    if #comments_cache[syntax] > 0 then
+      return comments_cache[syntax]
     else
       return nil
     end
@@ -150,9 +150,7 @@ local function get_comment_patterns(syntax)
       table.insert(comments, {"p", "^%s*" .. block_comment[1], block_comment[2]})
     end
   end
-  if syntax.name then
-    comments_cache[syntax.name] = comments
-  end
+  comments_cache[syntax] = comments
   if #comments > 0 then
     return comments
   end