diff --git a/flow-maven-plugin/src/main/java/com/vaadin/flow/plugin/maven/CopyProductionFilesMojo.java b/flow-maven-plugin/src/main/java/com/vaadin/flow/plugin/maven/CopyProductionFilesMojo.java
index f1f87d00f47..c8af69b26ed 100644
--- a/flow-maven-plugin/src/main/java/com/vaadin/flow/plugin/maven/CopyProductionFilesMojo.java
+++ b/flow-maven-plugin/src/main/java/com/vaadin/flow/plugin/maven/CopyProductionFilesMojo.java
@@ -16,6 +16,7 @@
 package com.vaadin.flow.plugin.maven;
 
 import java.io.File;
+import java.util.Arrays;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -29,7 +30,6 @@
 import com.vaadin.flow.plugin.common.ArtifactData;
 import com.vaadin.flow.plugin.common.JarContentsManager;
 import com.vaadin.flow.plugin.production.ProductionModeCopyStep;
-import java.util.Arrays;
 
 /**
  * Goal that copies all production mode files into the
@@ -67,6 +67,7 @@ public class CopyProductionFilesMojo extends AbstractMojo {
     @Override
     public void execute() {
         List<ArtifactData> projectArtifacts = project.getArtifacts().stream()
+                .filter(artifact -> "jar".equals(artifact.getType()))
                 .map(artifact -> new ArtifactData(artifact.getFile(),
                         artifact.getArtifactId(), artifact.getVersion()))
                 .collect(Collectors.toList());