diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c288711e..931d0ed8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,7 +20,7 @@ build:
         - export SAXON_CP=/usr/share/ant/lib/saxon9/saxon9he.jar
         - export HOXSL=hoxsl
         - ./bootstrap
-        - make all check info pdf html
+        - make clean all check info pdf html
     artifacts:
         paths:
             - doc/