diff --git a/doc/Makefile.am b/doc/Makefile.am
index 833eadd..7ee2ffe 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -5,12 +5,20 @@ EXTRA_DIST = \
 	generic_interface.tex \
 	md5.tex \
 	sha256.tex \
-	whirlpool.tex
+	whirlpool.tex \
+	ressource.tex
 
 if ENABLE_DOC
 pdf: libft_ssl.pdf
 
-libft_ssl.pdf: libft_ssl.tex
+libft_ssl.pdf: libft_ssl.tex \
+	$(srcdir)/preliminaries.tex \
+	$(srcdir)/introduction.tex \
+	$(srcdir)/generic_interface.tex \
+	$(srcdir)/md5.tex \
+	$(srcdir)/sha256.tex \
+	$(srcdir)/whirlpool.tex \
+	$(srcdir)/ressource.tex
 	TEXINPUTS=$(srcdir): $(PDFLATEX) $<
 	TEXINPUTS=$(srcdir): $(PDFLATEX) $<
 endif