diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 5f94bb4a56f..271bc967bc9 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -480,7 +480,6 @@ impl Clean<Item> for doctree::Module {
         items.extend(self.traits.iter().map(|x| x.clean(cx)));
         items.extend(self.impls.iter().flat_map(|x| x.clean(cx)));
         items.extend(self.macros.iter().map(|x| x.clean(cx)));
-        items.extend(self.def_traits.iter().map(|x| x.clean(cx)));
 
         // determine if we should display the inner contents or
         // the outer `mod` item for the source code.
diff --git a/src/librustdoc/doctree.rs b/src/librustdoc/doctree.rs
index b5c173b15d6..776ec7f409c 100644
--- a/src/librustdoc/doctree.rs
+++ b/src/librustdoc/doctree.rs
@@ -72,7 +72,6 @@ impl Module {
             constants  : Vec::new(),
             traits     : Vec::new(),
             impls      : Vec::new(),
-            def_traits : Vec::new(),
             foreigns   : Vec::new(),
             macros     : Vec::new(),
             is_crate   : false,