diff --git a/docs b/docs
index 41042eb9..4522b6d9 160000
--- a/docs
+++ b/docs
@@ -1 +1 @@
-Subproject commit 41042eb9fddb9632a46acb30e26dc9e018426b19
+Subproject commit 4522b6d963d16fe2939ac99b2b1c7536a8cb3350
diff --git a/platformio/test/runners/googletest.py b/platformio/test/runners/googletest.py
index deb81188..69df370c 100644
--- a/platformio/test/runners/googletest.py
+++ b/platformio/test/runners/googletest.py
@@ -100,7 +100,7 @@ class GoogletestTestRunner(TestRunnerBase):
     def configure_build_env(self, env):
         if self.platform.is_embedded():
             return
-        env.Append(CXXFLAGS=["-std=c++11"])
+        env.Append(CXXFLAGS=["-std=c++11", "-pthread"])
 
     def on_testing_line_output(self, line):
         if self.options.verbose: