1 files changed, 6 insertions, 0 deletions
diff --git a/src/librustdoc/html/toc.rs b/src/librustdoc/html/toc.rs
index 71313ea90b8..8d94e1857c4 100644
--- a/src/librustdoc/html/toc.rs
+++ b/src/librustdoc/html/toc.rs
@@ -177,6 +177,12 @@ impl TocBuilder {
 }
 
 impl fmt::Show for Toc {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        fmt::String::fmt(self, f)
+    }
+}
+
+impl fmt::String for Toc {
     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
         try!(write!(fmt, "<ul>"));
         for entry in self.entries.iter() {