sub-bundle for core
diff --git a/NatTable/bnd.bnd b/NatTable/bnd.bnd
index a2f22c3..21fadb1 100644
--- a/NatTable/bnd.bnd
+++ b/NatTable/bnd.bnd
@@ -3,8 +3,5 @@
 	org.eclipse.xtext.xbase.lib.source,\
 	org.eclipse.xtend.lib,\
 	org.eclipse.xtend.lib.source
-Export-Package: org.eclipse.nebula.widgets.nattable.core.axis,\
-	org.eclipse.nebula.widgets.nattable.core.data,\
-	org.eclipse.nebula.widgets.nattable.core.geometry,\
-	org.eclipse.nebula.widgets.nattable.core.layer,\
-	org.eclipse.nebula.widgets.nattable.core.layer.composite
+
+-sub: *.bnd
\ No newline at end of file
diff --git a/NatTable/core.bnd b/NatTable/core.bnd
new file mode 100644
index 0000000..2f93cdd
--- /dev/null
+++ b/NatTable/core.bnd
@@ -0,0 +1,5 @@
+Export-Package: org.eclipse.nebula.widgets.nattable.core.axis,\
+	org.eclipse.nebula.widgets.nattable.core.data,\
+	org.eclipse.nebula.widgets.nattable.core.geometry,\
+	org.eclipse.nebula.widgets.nattable.core.layer,\
+	org.eclipse.nebula.widgets.nattable.core.layer.composite
\ No newline at end of file