diff --git a/CHANGELOG b/CHANGELOG
index da1a01f..1bcb3db 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -3,6 +3,8 @@
 
 - ``pytest-xdist`` now requires pytest 2.7 or later.
 
+- Add ``worker_id`` attribute in the TestReport
+
 1.15.0
 ------
 
diff --git a/README.rst b/README.rst
index 468de90..2cafe8b 100644
--- a/README.rst
+++ b/README.rst
@@ -209,6 +209,10 @@ defined:
 * ``PYTEST_XDIST_WORKER_COUNT``: the total number of workers in this session,
   e.g., ``"4"`` when ``-n 4`` is given in the command-line.
 
+The information about the worker_id in a test is stored in the TestReport as
+well, under worker_id attribute.
+
+
 *New in version 1.15.*
 
 Specifying test exec environments in an ini file
diff --git a/testing/test_newhooks.py b/testing/test_newhooks.py
index a6737ea..ee79ebf 100644
--- a/testing/test_newhooks.py
+++ b/testing/test_newhooks.py
@@ -14,14 +14,19 @@ class TestHooks:
 
     def test_runtest_logreport(self, testdir):
         """Test that log reports from pytest_runtest_logreport when running
-        with xdist contain a "node" attribute. (#8)
+        with xdist contain "node", "nodeid" and "worker_id" attributes. (#8)
         """
         testdir.makeconftest("""
             def pytest_runtest_logreport(report):
                 if hasattr(report, 'node'):
-                    slaveid = report.node.slaveinput['slaveid']
                     if report.when == "call":
-                        print("HOOK: %s %s" % (report.nodeid, slaveid))
+                        slaveid = report.node.slaveinput['slaveid']
+                        if slaveid != report.worker_id:
+                            print("HOOK: Worker id mismatch: %s %s"
+                                   % (slaveid, report.worker_id))
+                        else:
+                            print("HOOK: %s %s"
+                                   % (report.nodeid, report.worker_id))
         """)
         res = testdir.runpytest('-n1', '-s')
         res.stdout.fnmatch_lines([
diff --git a/xdist/remote.py b/xdist/remote.py
index 40bbeac..bdec4e8 100644
--- a/xdist/remote.py
+++ b/xdist/remote.py
@@ -88,6 +88,7 @@ class SlaveInteractor:
     def pytest_runtest_logreport(self, report):
         data = serialize_report(report)
         data["item_index"] = self.item_index
+        data["worker_id"] = self.slaveid
         assert self.session.items[self.item_index].nodeid == report.nodeid
         self.sendevent("testreport", data=data)