diff --git a/src/main/java/org/jenkinsci/plugins/configfiles/buildwrapper/ManagedFile.java b/src/main/java/org/jenkinsci/plugins/configfiles/buildwrapper/ManagedFile.java
index 803c022a..d4aef707 100644
--- a/src/main/java/org/jenkinsci/plugins/configfiles/buildwrapper/ManagedFile.java
+++ b/src/main/java/org/jenkinsci/plugins/configfiles/buildwrapper/ManagedFile.java
@@ -23,6 +23,7 @@ of this software and associated documentation files (the "Software"), to deal
  */
 package org.jenkinsci.plugins.configfiles.buildwrapper;
 
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import hudson.Extension;
 import hudson.ExtensionPoint;
 import hudson.Util;
@@ -49,6 +50,7 @@ of this software and associated documentation files (the "Software"), to deal
  */
 public class ManagedFile extends ConfigFile implements ExtensionPoint, Describable<ManagedFile>, Serializable {
 
+    @SuppressFBWarnings(value = "PA_PUBLIC_PRIMITIVE_ATTRIBUTE", justification = "Preserve API compatibility.")
     public String variable;
 
     /**