diff --git a/doc/dev/dolibarr-doxygen b/doc/dev/dolibarr-doxygen
index eca1e4b8c8b2f5ad850293f297d696509383713a..b62b6b365896a9527569f7c0680fde13365ee5d2 100755
--- a/doc/dev/dolibarr-doxygen
+++ b/doc/dev/dolibarr-doxygen
@@ -83,7 +83,7 @@ EXCLUDE                = mysql \
                          htdocs/includes/php_writeexcel \
                          htdocs/includes/phplot
 EXCLUDE_SYMLINKS       = NO
-EXCLUDE_PATTERNS       =
+EXCLUDE_PATTERNS       = */CVS/Base/*
 EXAMPLE_PATH           = 
 EXAMPLE_PATTERNS       = 
 EXAMPLE_RECURSIVE      = NO