Typo fix.
diff --git a/Doc/api/api.tex b/Doc/api/api.tex
index 7262a5d..7858058 100644
--- a/Doc/api/api.tex
+++ b/Doc/api/api.tex
@@ -1402,7 +1402,7 @@
 \end{cfuncdesc}
 
 
-\section{Parsing arguements and building values
+\section{Parsing arguments and building values
          \label{arg-parsing}}
 
 These functions are useful when creating your own extensions functions