diff --git a/gclient_utils.py b/gclient_utils.py
index 913e8b13a..d21467fd7 100644
--- a/gclient_utils.py
+++ b/gclient_utils.py
@@ -209,7 +209,8 @@ def SubprocessCallAndFilter(command,
   # executable, but shell=True makes subprocess on Linux fail when it's called
   # with a list because it only tries to execute the first item in the list.
   kid = subprocess.Popen(command, bufsize=0, cwd=in_directory,
-      shell=(sys.platform == 'win32'), stdout=subprocess.PIPE)
+      shell=(sys.platform == 'win32'), stdout=subprocess.PIPE, 
+      stderr=subprocess.STDOUT)
 
   # Also, we need to forward stdout to prevent weird re-ordering of output.
   # This has to be done on a per byte basis to make sure it is not buffered:
diff --git a/tests/gclient_test.py b/tests/gclient_test.py
index 6638de4e9..c04bd6302 100644
--- a/tests/gclient_test.py
+++ b/tests/gclient_test.py
@@ -1071,7 +1071,8 @@ class SubprocessCallAndFilterTestCase(BaseTestCase):
       gclient.sys.stdout.write(i)
     gclient_utils.subprocess.Popen(command, bufsize=0, cwd=in_directory,
       shell=(gclient.sys.platform == 'win32'),
-      stdout=gclient_utils.subprocess.PIPE).AndReturn(kid)
+      stdout=gclient_utils.subprocess.PIPE,
+      stderr=gclient_utils.subprocess.STDOUT).AndReturn(kid)
     self.mox.ReplayAll()
     compiled_pattern = re.compile(pattern)
     line_list = []