diff --git a/doc/docsrc/Makefile.am b/doc/docsrc/Makefile.am
index 36ff07e..394a195 100644
--- a/doc/docsrc/Makefile.am
+++ b/doc/docsrc/Makefile.am
@@ -1,11 +1,12 @@
 
 XELATEX_FLAGS = -halt-on-error -file-line-error
 XELATEX = xelatex
+TEXSRC = '\def\asnver{@VERSION@}\input{asn1c-usage}'
 
 regen:
-	$(XELATEX) $(XELATEX_FLAGS) -no-pdf asn1c-usage
-	$(XELATEX) $(XELATEX_FLAGS) -no-pdf asn1c-usage
-	$(XELATEX) $(XELATEX_FLAGS) asn1c-usage
+	$(XELATEX) $(XELATEX_FLAGS) -no-pdf $(TEXSRC)
+	$(XELATEX) $(XELATEX_FLAGS) -no-pdf $(TEXSRC)
+	$(XELATEX) $(XELATEX_FLAGS) $(TEXSRC)
 
 EXTRA_DIST = $(srcdir)/*.tex
 
diff --git a/doc/docsrc/asn1c-usage.tex b/doc/docsrc/asn1c-usage.tex
index 60acf93..bb09d12 100644
--- a/doc/docsrc/asn1c-usage.tex
+++ b/doc/docsrc/asn1c-usage.tex
@@ -97,12 +97,14 @@
 
 \begin{document}
 
-\title{Using the Open Source ASN.1 Compiler}
+\title{Using the Open Source ASN.1 Compiler\\
+\vspace*{1cm}
+\Large Documentation for asn1c version \asnver{}}
 \author{Lev Walkin <\href{mailto:vlm@lionet.info?Subject=asn1c}{vlm@lionet.info}>}
 
 \pagestyle{fancy}
 \fancyhead[L]{\leftmark}
-\fancyhead[R]{\href{http://lionet.info/asn1c}{asn1c-0.9.26}}
+\fancyhead[R]{\href{http://lionet.info/asn1c}{asn1c-\asnver}}
 \maketitle
 
 \tableofcontents{}