diff --git a/sevntu-checkstyle-idea-extension/pom.xml b/sevntu-checkstyle-idea-extension/pom.xml
index a5e6215859..f4723e1dff 100644
--- a/sevntu-checkstyle-idea-extension/pom.xml
+++ b/sevntu-checkstyle-idea-extension/pom.xml
@@ -52,6 +52,21 @@
         </configuration>
       </plugin>
 
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
+        <version>3.2.1</version>
+        <executions>
+          <execution>
+            <id>attach-sources</id>
+            <phase>package</phase>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-javadoc-plugin</artifactId>