diff --git a/ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/util/PDEModelUtility.java b/ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/util/PDEModelUtility.java
index ba458cfb4e..bae7cf2879 100644
--- a/ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/util/PDEModelUtility.java
+++ b/ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/util/PDEModelUtility.java
@@ -412,9 +412,11 @@ private static void modifyEditorModel(final ModelModification mod, final PDEForm
 				for (IFile file : files) {
 					if (file == null)
 						continue;
-					InputContext con = editor.getContextManager().findContext(file);
-					if (con != null)
-						con.flushEditorInput();
+					if (editor.getContextManager() != null){
+						InputContext con = editor.getContextManager().findContext(file);
+						if (con != null)
+							con.flushEditorInput();
+					}
 				}
 				if (mod.saveOpenEditor())
 					editor.doSave(monitor);