diff --git a/Documentation/user_guide.tex b/Documentation/user_guide.tex
index 2711c2d19bfae4f037810c6f8ecce7e22b4add06..a67873f94791de4a464f37e80e6cb280c0efaeb7 100644
--- a/Documentation/user_guide.tex
+++ b/Documentation/user_guide.tex
@@ -41,7 +41,7 @@
 \vspace*{\fill}
 \begin{center}
 \begin{minipage}{.6\textwidth}
-\large This user guide is deprecated and a new one is currently being written.
+\large This user guide is obsolete and a new one is currently being written.
 
 \large In the mean time, visit the http://nptool.org/ website.