diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 240264b4e59d132a1c575f75bc781d93afc091f5..6f30ad9c0131ca3bc9921b378bbe99b3fbc95b10 100755
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -18,6 +18,7 @@ before_script:
   - wget https://downloads.wkhtmltopdf.org/0.12/0.12.4/wkhtmltox-0.12.4_linux-generic-amd64.tar.xz
   - tar xvf wkhtmltox-0.12.4_linux-generic-amd64.tar.xz
   - mv wkhtmltox/bin/wkhtmlto* /usr/bin
+  - chmod +x /usr/bin/wkhtmlto*
   - apt-get install libreoffice -yqq > /dev/null
   - apt-get install xpdf-utils -yqq > /dev/null
   - apt-get install imagemagick -yqq > /dev/null