diff --git a/core/src/main/java/hudson/maven/MavenEmbedder.java b/core/src/main/java/hudson/maven/MavenEmbedder.java
index 018fd10d050e3bd014c2c27149f6d9369382eedc..a77693f21697e292183dcedb48c96df6bd8f9e43 100644
--- a/core/src/main/java/hudson/maven/MavenEmbedder.java
+++ b/core/src/main/java/hudson/maven/MavenEmbedder.java
@@ -736,6 +736,7 @@ public class MavenEmbedder
                 // for us. So we need to override this private field.
                 try {
                     Field field = settingsBuilder.getClass().getDeclaredField("globalSettingsFile");
+                    field.setAccessible(true);
                     // getAbsoluteFile is probably not necessary, but just following what DefaultMavenSettingsBuilder does
                     field.set(settingsBuilder,new File(mavenHome,"conf/settings.xml").getAbsoluteFile());
                 } catch (NoSuchFieldException e) {