diff --git a/Doc/libthread.tex b/Doc/libthread.tex
index 4f5497a..edf21f3 100644
--- a/Doc/libthread.tex
+++ b/Doc/libthread.tex
@@ -81,7 +81,7 @@
 thread, 0 if not.
 \end{funcdesc}
 
-{\bf Caveats:}
+\strong{Caveats:}
 
 \begin{itemize}
 \item