diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
index 37b7c6c07b0..e7bb0b03ce2 100644
--- a/src/librustdoc/html/render.rs
+++ b/src/librustdoc/html/render.rs
@@ -2527,7 +2527,7 @@ fn item_trait(w: &mut fmt::Formatter, cx: &Context, it: &clean::Item,
         }
     }
     write!(w, r#"<script type="text/javascript">window.inlined_types=new Set({});</script>"#,
-            as_json(&synthetic_types))?;
+           as_json(&synthetic_types))?;
 
     write!(w, r#"<script type="text/javascript" async
                          src="{root_path}/implementors/{path}/{ty}.{name}.js">