diff --git a/doc/interprocess.qbk b/doc/interprocess.qbk
index 1536400..dd3a62f 100644
--- a/doc/interprocess.qbk
+++ b/doc/interprocess.qbk
@@ -5219,8 +5219,6 @@ segments.
 
 [endsect]
 
-[endsect]
-
 [section:streams Direct iostream formatting: vectorstream and bufferstream]
 
 Shared memory, memory-mapped files and all [*Boost.Interprocess] mechanisms are focused