diff --git a/.ci/docs.jenkinsfile b/.ci/docs.jenkinsfile
index 7d6ff8ec..5f5904e7 100644
--- a/.ci/docs.jenkinsfile
+++ b/.ci/docs.jenkinsfile
@@ -1,12 +1,12 @@
 pipeline {
-        agent {
-              dockerfile { filename '.ci/ubuntu18.04.dockerfile' }
-        }
-        stages {
-                stage('Build') {
-                    steps {
-                        sh 'make -C Documentation html SPHINXOPTS="-W"'
-                    }
-                }
+    agent {
+        dockerfile { filename '.ci/ubuntu18.04.dockerfile' }
+    }
+    stages {
+        stage('build') {
+            steps {
+                sh 'make -C Documentation html SPHINXOPTS="-W"'
+            }
         }
+    }
 }