diff --git a/sigil/eclipse/utils/.project b/sigil/eclipse/utils/.project
index 94d95fe..c3ac20d 100644
--- a/sigil/eclipse/utils/.project
+++ b/sigil/eclipse/utils/.project
@@ -11,13 +11,13 @@
 			</arguments>
 		</buildCommand>
 		<buildCommand>
-			<name>org.cauldron.sigil.core.newtonBuilder</name>
+			<name>org.apache.felix.sigil.eclipse.core.sigilBuilder</name>
 			<arguments>
 			</arguments>
 		</buildCommand>
 	</buildSpec>
 	<natures>
+		<nature>org.apache.felix.sigil.sigilnature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
-		<nature>org.cauldron.sigil.core.newtonnature</nature>
 	</natures>
 </projectDescription>