*fix
diff --git a/features/org.eclipse.dltk.ruby-feature/feature.xml b/features/org.eclipse.dltk.ruby-feature/feature.xml
index 5bd331a..b850be6 100644
--- a/features/org.eclipse.dltk.ruby-feature/feature.xml
+++ b/features/org.eclipse.dltk.ruby-feature/feature.xml
@@ -80,15 +80,15 @@
          install-size="0"
          version="0.0.0"
          unpack="false"/>
-         
-    <plugin
+
+   <plugin
          id="org.eclipse.dltk.ruby.basicdebugger"
          download-size="0"
          install-size="0"
          version="0.0.0"
          unpack="false"/>
-         
-    <plugin
+
+   <plugin
          id="org.eclipse.dltk.ruby.activestatedebugger"
          download-size="0"
          install-size="0"
@@ -102,4 +102,11 @@
          version="0.0.0"
          unpack="false"/>
 
+   <plugin
+         id="org.eclipse.dltk.ruby.abstractdebugger"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
+
 </feature>