let's avoid the extra nesting where reasonable
diff --git a/Doc/api/concrete.tex b/Doc/api/concrete.tex
index 3d73b7b..cb065ff 100644
--- a/Doc/api/concrete.tex
+++ b/Doc/api/concrete.tex
@@ -192,7 +192,7 @@
   header files).
 \end{cfuncdesc}
 
-\subsubsection{Boolean Objects \label{boolObjects}}
+\subsection{Boolean Objects \label{boolObjects}}
 
 Booleans in Python are implemented as a subclass of integers.  There
 are only two booleans, \constant{Py_False} and \constant{Py_True}.  As