diff --git a/gcl.py b/gcl.py
index 0c8fbb61ef..dffc566330 100755
--- a/gcl.py
+++ b/gcl.py
@@ -532,7 +532,7 @@ class ChangeInfo(object):
       if fail_on_not_found:
         ErrorExit("Changelist " + changename + " not found.")
       return ChangeInfo(changename, 0, 0, '', None, local_root, None, False)
-    content = gclient_utils.FileRead(info_file, 'r')
+    content = gclient_utils.FileRead(info_file)
     save = False
     try:
       values = ChangeInfo._LoadNewFormat(content)
@@ -1137,7 +1137,7 @@ def CMDchange(args):
         subprocess2.check_call(cmd, shell=True)
       except subprocess2.CalledProcessError, e:
         ErrorExit('Editor returned %d' % e.returncode)
-    result = gclient_utils.FileRead(filename, 'r')
+    result = gclient_utils.FileRead(filename)
   finally:
     os.remove(filename)
 
diff --git a/presubmit_support.py b/presubmit_support.py
index fa2261a7ff..85b3a3f70c 100755
--- a/presubmit_support.py
+++ b/presubmit_support.py
@@ -897,9 +897,9 @@ class GetTrySlavesExecuter(object):
     if function_name in context:
       get_preferred_try_slaves = context[function_name]
       function_info = inspect.getargspec(get_preferred_try_slaves)
-      if len(function_info.args) == 1:
+      if len(function_info[0]) == 1:
         result = get_preferred_try_slaves(project)
-      elif len(function_info.args) == 2:
+      elif len(function_info[0]) == 2:
         result = get_preferred_try_slaves(project, change)
       else:
         result = get_preferred_try_slaves()
diff --git a/tests/gcl_unittest.py b/tests/gcl_unittest.py
index 2cccc60dae..e013df2e24 100755
--- a/tests/gcl_unittest.py
+++ b/tests/gcl_unittest.py
@@ -216,7 +216,7 @@ class ChangeInfoUnittest(GclTestsBase):
     description = ["This is some description.", "force an extra separator."]
     gcl.GetChangelistInfoFile('bleh').AndReturn('bleeeh')
     gcl.os.path.exists('bleeeh').AndReturn(True)
-    gcl.gclient_utils.FileRead('bleeeh', 'r').AndReturn(
+    gcl.gclient_utils.FileRead('bleeeh').AndReturn(
       gcl.ChangeInfo._SEPARATOR.join(["42, 53", "G      b.cc"] + description))
     gcl.GetCodeReviewSetting('CODE_REVIEW_SERVER').AndReturn('foo')
     # Does an upgrade.
@@ -236,7 +236,7 @@ class ChangeInfoUnittest(GclTestsBase):
     self.mox.StubOutWithMock(gcl, 'GetCodeReviewSetting')
     gcl.GetChangelistInfoFile('bleh').AndReturn('bleeeh')
     gcl.os.path.exists('bleeeh').AndReturn(True)
-    gcl.gclient_utils.FileRead('bleeeh', 'r').AndReturn(
+    gcl.gclient_utils.FileRead('bleeeh').AndReturn(
         gcl.ChangeInfo._SEPARATOR.join(["", "", ""]))
     gcl.GetCodeReviewSetting('CODE_REVIEW_SERVER').AndReturn('foo')
     # Does an upgrade.