Index: interprocess.qbk
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--- interprocess.qbk	(revision 40170)
+++ interprocess.qbk	(working copy)
@@ -1949,8 +1949,12 @@
 [*Returns:] If acquires upgradable ownership, returns true. Otherwise 
 returns false.
 
-[*Throws:] An exception derived from *interprocess_exception* on error.[endsect][endsect]
+[*Throws:] An exception derived from *interprocess_exception* on error. 
 
+[endsect]
+
+[endsect]
+
 [section:upgradable_mutexes_mutex_interprocess_mutexes Boost.Interprocess Upgradable Mutex Types And Headers]
 
 Boost.Interprocess offers the following upgradable mutex types: