specified EE
diff --git a/visualization/plugins/org.eclipse.mylar.zest.layouts/META-INF/MANIFEST.MF b/visualization/plugins/org.eclipse.mylar.zest.layouts/META-INF/MANIFEST.MF
index d34a1eb..b8924a1 100644
--- a/visualization/plugins/org.eclipse.mylar.zest.layouts/META-INF/MANIFEST.MF
+++ b/visualization/plugins/org.eclipse.mylar.zest.layouts/META-INF/MANIFEST.MF
@@ -16,3 +16,4 @@
 Require-Bundle: org.eclipse.swt;visibility:=reexport,
  org.eclipse.core.runtime,
  org.eclipse.jface
+Bundle-RequiredExecutionEnvironment: J2SE-1.4