diff --git a/pregelix/pregelix-core/pom.xml b/pregelix/pregelix-core/pom.xml
index 0908829..57ae85e 100644
--- a/pregelix/pregelix-core/pom.xml
+++ b/pregelix/pregelix-core/pom.xml
@@ -67,6 +67,7 @@
 				<configuration>
 					<source>1.6</source>
 					<target>1.6</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>