diff --git a/Doc/lib/libthread.tex b/Doc/lib/libthread.tex
index 9e0c202..9573ab3 100644
--- a/Doc/lib/libthread.tex
+++ b/Doc/lib/libthread.tex
@@ -44,8 +44,8 @@
 \end{funcdesc}
 
 \begin{funcdesc}{interrupt_main}{}
-Raise a KeyboardInterrupt in the main thread.  A subthread can use this
-function to interrupt the main thread.
+Raise a \exception{KeyboardInterrupt} exception in the main thread.  A subthread
+can use this function to interrupt the main thread.
 \versionadded{2.3}
 \end{funcdesc}
 
diff --git a/Doc/lib/libtokenize.tex b/Doc/lib/libtokenize.tex
index cdbb4b8..8c9ad3e 100644
--- a/Doc/lib/libtokenize.tex
+++ b/Doc/lib/libtokenize.tex
@@ -47,7 +47,7 @@
   call to the function should return one line of input as a string.
   Alternately, \var{readline} may be a callable object that signals
   completion by raising \exception{StopIteration}.
-  \versionchanged[Added StopIteration support]{2.5}
+  \versionchanged[Added \exception{StopIteration} support]{2.5}
 
   The second parameter, \var{tokeneater}, must also be a callable
   object.  It is called once for each token, with five arguments,