diff --git a/bin.js b/bin.js
index f147223..2ae9cee 100755
--- a/bin.js
+++ b/bin.js
@@ -84,7 +84,11 @@ program
 program
   .command('gen-feature')
   .description('generate a feature file')
-  .option('-e, --extend <feature-file>', 'extend an existing feature file')
+  .option(
+    '-e, --extend [<feature-file>]',
+    'extend an existing feature file',
+    val => val.split(',')
+  )
   .option('-x, --exclude [projects]', 'exclude existing wabs', val =>
     val.split(',')
   )
diff --git a/lib/gen-feature.js b/lib/gen-feature.js
index c7c5197..dabb784 100644
--- a/lib/gen-feature.js
+++ b/lib/gen-feature.js
@@ -46,16 +46,20 @@ const jetty = {
   packaging: 'jar',
 }
 
-const extend = file => {
-  const features = fs.readFileSync(file, { encoding: 'utf8' })
-  const $ = cheerio.load(features, { xmlMode: true, decodeEntities: false })
-  return $('features > feature > bundle')
-    .map((i, el) =>
-      $(el)
-        .text()
-        .trim()
+const extend = files => {
+  return files.reduce((list, file) => {
+    const features = fs.readFileSync(file, { encoding: 'utf8' })
+    const $ = cheerio.load(features, { xmlMode: true, decodeEntities: false })
+    return list.concat(
+      $('features > feature > bundle')
+        .map((i, el) =>
+          $(el)
+            .text()
+            .trim()
+        )
+        .get()
     )
-    .get()
+  }, [])
 }
 
 const getBaseCoordinates = (args, project) => {
@@ -88,12 +92,14 @@ module.exports = ({ args, getPackage, getPom }) => {
     version: project.version,
   }))
 
-  const coors = base.concat(local.map(mvn)).filter(coor => {
-    if (!Array.isArray(args.exclude)) {
-      return true
-    }
-    return !args.exclude.some(arg => coor.match(arg))
-  })
+  const coors = base
+    .filter(coor => {
+      if (!Array.isArray(args.exclude)) {
+        return true
+      }
+      return !args.exclude.some(arg => coor.match(arg))
+    })
+    .concat(local.map(mvn))
 
   const absolute = path.resolve('target/features.xml')