diff --git a/src/MBO/SatisGitlab/Command/GitlabToConfigCommand.php b/src/MBO/SatisGitlab/Command/GitlabToConfigCommand.php
index c32aeba..a8c24ce 100644
--- a/src/MBO/SatisGitlab/Command/GitlabToConfigCommand.php
+++ b/src/MBO/SatisGitlab/Command/GitlabToConfigCommand.php
@@ -22,6 +22,7 @@
 
 use MBO\SatisGitlab\Filter\IgnoreRegexpFilter;
 use MBO\SatisGitlab\Filter\IncludeIfHasFileFilter;
+use MBO\SatisGitlab\Filter\ProjectTypeFilter;
 
 
 
@@ -61,6 +62,7 @@ protected function configure() {
              */
             ->addOption('ignore', 'i', InputOption::VALUE_REQUIRED, 'ignore project according to a regexp, for ex : "(^phpstorm|^typo3\/library)"', null)
             ->addOption('include-if-has-file',null,InputOption::VALUE_REQUIRED, 'include in satis config if project contains a given file, for ex : ".satisinclude"', null)
+            ->addOption('project-type',null,InputOption::VALUE_REQUIRED, 'include in satis config if project is of a specified type, for ex : "library"', null)
             /* 
              * satis config generation options 
              */
@@ -121,6 +123,14 @@ protected function execute(InputInterface $input, OutputInterface $output) {
                 $logger
             ));
         }
+        /* project-type option */
+        if ( ! empty($input->getOption('project-type')) ){
+            $filterCollection->addFilter(new ProjectTypeFilter(
+                $input->getOption('project-type'),
+                $client,
+                $logger
+            ));
+        }
 
         /*
          * Create configuration builder
diff --git a/src/MBO/SatisGitlab/Filter/ProjectTypeFilter.php b/src/MBO/SatisGitlab/Filter/ProjectTypeFilter.php
new file mode 100644
index 0000000..d72eab4
--- /dev/null
+++ b/src/MBO/SatisGitlab/Filter/ProjectTypeFilter.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace MBO\SatisGitlab\Filter;
+
+use MBO\SatisGitlab\Git\ProjectInterface;
+use MBO\SatisGitlab\Git\ClientInterface as GitClientInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Ignore project according to their type
+ */
+class ProjectTypeFilter implements ProjectFilterInterface {
+    /**
+     * @var string
+     */
+    protected $projectType;
+    
+    /**
+     * @var GitClientInterface
+     */
+    protected $gitClient;
+
+    /**
+     * @var LoggerInterface
+     */
+    protected $logger;
+
+    /**
+     * ProjectTypeFilter constructor.
+     *
+     * @param string $type
+     * @param GitClientInterface $gitClient
+     * @param LoggerInterface $logger
+     */
+    public function __construct($type, GitClientInterface $gitClient, LoggerInterface $logger)
+    {
+        assert(!empty($type));        
+        $this->projectType = $type;
+        $this->gitClient = $gitClient;
+        $this->logger = $logger;
+    }
+    
+    /**
+     * {@inheritDoc}
+     */
+    public function isAccepted(ProjectInterface $project)
+    {
+        try {
+            $json = $this->gitClient->getRawFile(
+                $project,
+                'composer.json',
+                $project->getDefaultBranch()
+            );
+            $composer = json_decode($json, true);
+            return isset($composer['type']) && strtolower($composer['type']) === strtolower($this->projectType);
+        }catch(\Exception $e){
+            $this->logger->debug(sprintf(
+                '%s (branch %s) : file %s not found',
+                $project->getName(),
+                $project->getDefaultBranch(),
+                'composer.json'
+            ));
+            return false;
+        }
+    }
+}