diff --git a/core-jdk8/pom.xml b/core-jdk8/pom.xml
index 4f8c72266..1a2cf4711 100644
--- a/core-jdk8/pom.xml
+++ b/core-jdk8/pom.xml
@@ -71,6 +71,19 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-source-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>attach-sources</id>
+                        <phase>verify</phase>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>