diff --git a/test/serve.test.js b/test/serve.test.js
index <HASH>..<HASH> 100644
--- a/test/serve.test.js
+++ b/test/serve.test.js
@@ -33,6 +33,7 @@ describe('serve', function() {
   });
 
   it('finds next unused port', function() {
+    this.timeout(10000);
     return createDirectory('foo').then(path => {
       process1 = spawn('node', ['./src/tabris', 'serve', path]);
       let port1;
Increase timeout of slow serve test

Spawning serve several times sequentially may take more than 2 seconds,
which leads to errors in a shared resource test environment.

Change-Id: I3ec<I>caec<I>d<I>b6d<I>ef0ddf<I>