diff --git a/doc/developer/advance.tex b/doc/developer/advance.tex
index b92bf5c08af89d2787a2f28c09872cc0d19840cc..3aa40e5f9d34bb05d5296d13e370fb42bda538de 100644
--- a/doc/developer/advance.tex
+++ b/doc/developer/advance.tex
@@ -1023,7 +1023,7 @@ the sequence above is read in order and defines a configuration level
     STDOPT: [[+#-]"opt" ...]
   \end{code}
 options are always given between quotes. An option following a \texttt{+}
-(resp. \texttt{\#} is added to the end (resp. start) of current set of options
+(resp. \texttt{\#}) is added to the end (resp. start) of current set of options
 while an option following a \texttt{-} is removed from it. The directive can be
 empty (meaning that the corresponding test will use the standard set of
 options). As with \texttt{OPT}, each \texttt{STDOPT} corresponds to a different
@@ -2938,9 +2938,9 @@ module Print =
 \end{ocamlcode}
 So it is a boolean parameter initialized by default to
 \texttt{false}. The declared interface for this module is simply
-\scodeidx{Parameter\_sig}{Int}
+\scodeidx{Parameter\_sig}{Bool}
 \begin{ocamlcode}
-module Print: Parameter_sig.Int
+module Print: Parameter_sig.Bool
 \end{ocamlcode}
 
 Another example is the parameter corresponding to the option
diff --git a/doc/developer/developer.tex b/doc/developer/developer.tex
index 3a286b2e55755748867b94b4666871a76261ee27..a8551f1f9cba789e688fbcb579b579f7bec66fbf 100644
--- a/doc/developer/developer.tex
+++ b/doc/developer/developer.tex
@@ -101,8 +101,8 @@ described here may still evolve in the future.
 %\addcontentsline{toc}{chapter}{Acknowledgements}
 
 We gratefully thank all the people who contributed to this document: Gergö
-Barany, Patrick
-Baudin, Richard Bonichon, Pascal Cuoq, Zaynah Dargaye, Florent Garnier,
+Barany, Patrick Baudin, Richard Bonichon, Pascal Cuoq, Zaynah Dargaye, Basile 
+Desloges,  Florent Garnier,
 Pierre-Loïc Garoche, Philippe Herrmann, Boris Hollas, Nikolaï Kosmatov,
 Jean-Christophe Léchenet, André Maroneze, Benjamin Monate, Yannick Moy,
 Anne Pacalet, Armand Puccetti, Muriel Roger and Boris
diff --git a/doc/developer/tutorial.tex b/doc/developer/tutorial.tex
index 76223c6ba9dee876603569a18ce7692ff5868d33..457004dd0a5643c0c65fbd40384b55d8085f3e9c 100644
--- a/doc/developer/tutorial.tex
+++ b/doc/developer/tutorial.tex
@@ -527,6 +527,7 @@ This enables the creation of a
 \texttt{./tests/ptests\_config} file holding the environement needed by
 \ptests to run the plug-in's tests by running:
 \begin{shell}
+\$ mkdir tests
 \$ make
 <...>
 Generating   tests/ptests_config