diff --git a/pom.xml b/pom.xml
index f6eed371e1..4adda37592 100644
--- a/pom.xml
+++ b/pom.xml
@@ -526,6 +526,9 @@
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-javadoc-plugin</artifactId>
             <version>2.8</version>
+            <configuration>
+              <linksource>true</linksource>
+            </configuration>
             <reportSets>
               <reportSet>
                 <id>non-aggregate</id>