diff --git a/Makefile.env b/Makefile.env
index a114e53a0bce5a92c8fc11d098e5ff6ad017327e..77df3681e339f68c137d8afa2f28e144eef9a1bf 100644
--- a/Makefile.env
+++ b/Makefile.env
@@ -17,7 +17,7 @@
 # Parameters
 HTTP_BASE = www
 
-web: jhead
+web: jhead mat
 	@ikiwiki --setup ikiwiki.yaml
 
 web_deploy:
@@ -28,3 +28,11 @@ publish: web web_deploy
 jhead:
 	@find -name '*jpg ' -exec jhead -dc -de -di -dx -du {} \;
 	@find -name '*jpeg' -exec jhead -dc -de -di -dx -du {} \;
+
+mat:
+	@find -type f -name '*.ods' -exec mat2 -V {} \;
+	@find -type f -name '*.ods' -exec rename -f 's/\.cleaned.ods/.ods/' {} \;
+	@find -type f -name '*.pdf' -exec mat2 -V {} \;
+	@find -type f -name '*.pdf' -exec rename -f 's/\.cleaned.pdf/.pdf/' {} \;
+	@find -type f -name '*.ods' -exec chmod 644 {} \;
+	@find -type f -name '*.pdf' -exec chmod 644 {} \;