diff --git a/Jenkinsfile b/Jenkinsfile
index 0e9cbba..321aae1 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -14,7 +14,7 @@ pipeline {
 			agent any
 			steps {
                 sh 'python3.8 tests.py'
-                sh 'make doc_images -j4'
+				sh 'Xvfb :5 -screen 0 800x600x24 &; DISPLAY=:5 make doc_images -j4'
 				sh 'make -C docs html'
 			}
 		}