diff --git a/build.xml b/build.xml
index 389cee2..70e93ee 100644
--- a/build.xml
+++ b/build.xml
@@ -38,6 +38,8 @@
     </target>
 
     <target name="coveralls">
-        <exec executable="bin/coveralls" passthru="true" />
+        <exec executable="bin/coveralls" passthru="true">
+            <arg value="-v" />
+        </exec>
     </target>
 </project>