diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8c689c5..8577be9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,7 +6,7 @@ stages:
 build-pdf:
     stage: pdf
     script:
-        - "for i in `ls *.tex`; do pdflatex -synctex=1 -interaction=nonstopmode \"$i\"; done"
+        - "for dummy in 1 2; do for i in `ls *.tex`; do pdflatex -synctex=1 -interaction=nonstopmode \"$i\"; done; done"
     artifacts:
         paths:
             - "*.pdf"