diff --git a/source/containers.tex b/source/containers.tex
index 727e239cd0..264aa8965a 100644
--- a/source/containers.tex
+++ b/source/containers.tex
@@ -2627,8 +2627,7 @@
 
 \begin{codeblock}
 template<class Iterator, class NodeType>
-struct @\placeholder{insert-return-type}@
-{
+struct @\placeholder{insert-return-type}@ {
   Iterator position;
   bool     inserted;
   NodeType node;