diff --git a/src/main/java/org/jenkinsci/plugins/casc/ConfigurationAsCode.java b/src/main/java/org/jenkinsci/plugins/casc/ConfigurationAsCode.java
index a74ee6b4..4637790e 100644
--- a/src/main/java/org/jenkinsci/plugins/casc/ConfigurationAsCode.java
+++ b/src/main/java/org/jenkinsci/plugins/casc/ConfigurationAsCode.java
@@ -1,5 +1,6 @@
 package org.jenkinsci.plugins.casc;
 
+import hudson.ExtensionList;
 import hudson.Plugin;
 import hudson.init.InitMilestone;
 import hudson.init.Initializer;