diff --git a/plugins/org.eclipse.ocl.master-feature/feature.xml b/plugins/org.eclipse.ocl.master-feature/feature.xml
index 31aaf52..03368cc 100755
--- a/plugins/org.eclipse.ocl.master-feature/feature.xml
+++ b/plugins/org.eclipse.ocl.master-feature/feature.xml
@@ -32,6 +32,10 @@
          version="0.0.0"/>
 
    <includes
+         id="org.eclipse.ocl.core.sdk"
+         version="0.0.0"/>
+
+   <includes
          id="org.eclipse.ocl.all"
          version="0.0.0"/>