Maven Eclipse - Child module not recognized as maven project

Question

I'm working on a new maven multi module project on eclipse. The problem is, the child project is shown as a regular folder and not a maven folder. What's the problem? I created the parent project with only the pom.xml and pom packaging. the child module was created through cmd with the typical mvn archetype:generate command

here are the pom.xml files

Parent

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    
  <modelVersion>4.0.0</modelVersion>
    
  <groupId>blabla</groupId>
    
  <artifactId>zuers-klassen</artifactId>
    
  <version>0.0.1-SNAPSHOT</version>
    
  <packaging>pom</packaging>
  
  <modules>
    <module>zuers-klassen-api</module>
  </modules>
</project> 

Child

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <artifactId>zuers-klassen</artifactId>
    <groupId>blbabla</groupId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>

  <groupId>blabla</groupId>
  <artifactId>zuers-klassen-api</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>maven-archetype</packaging>

  <name>Archetype - zuers-klassen-api</name>

  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <build>
    <extensions>
      <extension>
        <groupId>org.apache.maven.archetype</groupId>
        <artifactId>archetype-packaging</artifactId>
        <version>3.2.0</version>
      </extension>
    </extensions>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-archetype-plugin</artifactId>
          <version>3.2.0</version>
          <configuration>
            <properties>
              <https.protocols>${https.protocols}</https.protocols>
            </properties>
          </configuration>
        </plugin>
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.2.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>