diff --git a/plugins/org.eclipse.xtext.xtext.generator/src/org/eclipse/xtext/xtext/generator/ui/quickfix/QuickfixProviderFragment2.xtend b/plugins/org.eclipse.xtext.xtext.generator/src/org/eclipse/xtext/xtext/generator/ui/quickfix/QuickfixProviderFragment2.xtend
index 019c41416..3c0b9ff6c 100644
--- a/plugins/org.eclipse.xtext.xtext.generator/src/org/eclipse/xtext/xtext/generator/ui/quickfix/QuickfixProviderFragment2.xtend
+++ b/plugins/org.eclipse.xtext.xtext.generator/src/org/eclipse/xtext/xtext/generator/ui/quickfix/QuickfixProviderFragment2.xtend
@@ -153,7 +153,7 @@ class QuickfixProviderFragment2 extends AbstractInheritingFragment {
 	}
 	
 	protected def addRegistrationToPluginXml() {
-		val markerTypePrefix = grammar.eclipsePluginBasePackage + "." + grammar.simpleName.toLowerCase
+		val markerTypePrefix = projectConfig.eclipsePlugin.name + "." + grammar.simpleName.toLowerCase
 		val executableExtensionFactory = grammar.eclipsePluginExecutableExtensionFactory
 
 		projectConfig.eclipsePlugin.pluginXml.entries += '''