Maven attach-artifact - keep original name

I am using build-helper-maven-plugin

to attach-artifact

add a custom jar file to the Nexus, next to the ear file. After the build finishes, the jar file exists, but instead of keeping its original name, it has been renamed to <project_name>-ear-<version>-<timestamp>.jar

. Is there anything I can do to keep its original name, i.e. Configure Maven to store the name?

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>build-helper-maven-plugin</artifactId>
    <version>1.9.1</version>
    <executions>
        <execution>
            <id>attach-artifacts</id>
            <phase>package</phase>
            <goals>
                <goal>attach-artifact</goal>
            </goals>
            <configuration>
                <artifacts>
                    <artifact>
                        <file>../xxx/src/main/resources/lib/DbSynchronizer.jar</file>
                        <type>jar</type>
                    </artifact>
                </artifacts>
            </configuration>
        </execution>
    </executions>
</plugin>