diff --git a/io.typefox.xtext2langium.tests/pom.xml b/io.typefox.xtext2langium.tests/pom.xml
index 51e201b..d1fcf12 100644
--- a/io.typefox.xtext2langium.tests/pom.xml
+++ b/io.typefox.xtext2langium.tests/pom.xml
@@ -15,6 +15,15 @@
 	<packaging>eclipse-plugin</packaging>
 	<build>
 		<plugins>
+			<plugin>
+				<!-- clean  "xtend-gen" and "target" folder. -->
+				<artifactId>maven-clean-plugin</artifactId>
+			</plugin>
+			<plugin>
+				<!-- Compile Xtend files -->
+				<groupId>org.eclipse.xtend</groupId>
+				<artifactId>xtend-maven-plugin</artifactId>
+			</plugin>
 			<plugin>
 				<artifactId>maven-deploy-plugin</artifactId>
 				<configuration>
diff --git a/io.typefox.xtext2langium/pom.xml b/io.typefox.xtext2langium/pom.xml
index 230802c..162992e 100644
--- a/io.typefox.xtext2langium/pom.xml
+++ b/io.typefox.xtext2langium/pom.xml
@@ -13,5 +13,17 @@
 
 	<!-- This is a Maven-Tycho build. See https://eclipse.org/tycho/ -->
 	<packaging>eclipse-plugin</packaging>
-	
+	<build>
+		<plugins>
+			<plugin>
+				<!-- clean  "xtend-gen" and "target" folder. -->
+				<artifactId>maven-clean-plugin</artifactId>
+			</plugin>
+			<plugin>
+				<!-- Compile Xtend files -->
+				<groupId>org.eclipse.xtend</groupId>
+				<artifactId>xtend-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
 </project>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 558cb06..1e6dd71 100644
--- a/pom.xml
+++ b/pom.xml
@@ -109,6 +109,44 @@
 					<artifactId>maven-deploy-plugin</artifactId>
 					<version>2.8.2</version>
 				</plugin>
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-clean-plugin</artifactId>
+					<version>2.5</version>
+					<configuration>
+						<filesets>
+							<fileset>
+								<directory>${project.basedir}/target</directory>
+							</fileset>
+							<fileset>
+								<directory>${project.basedir}/xtend-gen</directory>
+								<includes>
+									<include>**/*</include>
+								</includes>
+								<excludes>
+									<exclude>.gitignore</exclude>
+								</excludes>
+							</fileset>
+						</filesets>
+					</configuration>
+				</plugin>
+				<!-- configure the Xtend compiler -->
+				<plugin>
+					<groupId>org.eclipse.xtend</groupId>
+					<artifactId>xtend-maven-plugin</artifactId>
+					<version>2.25.0</version>
+					<executions>
+						<execution>
+							<goals>
+								<goal>compile</goal>
+							</goals>
+						</execution>
+					</executions>
+					<configuration>
+						<writeTraceFiles>false</writeTraceFiles>
+						<outputDirectory>${basedir}/xtend-gen</outputDirectory>
+					</configuration>
+				</plugin>
 			</plugins>
 		</pluginManagement>
 	</build>