diff --git a/plugins/org.eclipse.dltk.ruby.debug/META-INF/MANIFEST.MF b/plugins/org.eclipse.dltk.ruby.debug/META-INF/MANIFEST.MF
index 5c133d1..837cc1a 100644
--- a/plugins/org.eclipse.dltk.ruby.debug/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.dltk.ruby.debug/META-INF/MANIFEST.MF
@@ -9,7 +9,7 @@
  org.eclipse.core.resources,
  org.eclipse.core.variables,
  org.eclipse.debug.core
-Eclipse-LazyStart: true
+Bundle-ActivationPolicy: lazy
 Export-Package: org.eclipse.dltk.ruby.debug
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin