diff --git a/hyracks/hyracks-storage-am-rtree/pom.xml b/hyracks/hyracks-storage-am-rtree/pom.xml
index ade69ef..61620ec 100644
--- a/hyracks/hyracks-storage-am-rtree/pom.xml
+++ b/hyracks/hyracks-storage-am-rtree/pom.xml
@@ -18,8 +18,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.0.2</version>
         <configuration>
-          <source>1.7</source>
-          <target>1.7</target>
+          <source>1.6</source>
+          <target>1.6</target>
         </configuration>
       </plugin>
     </plugins>