1 files changed, 5 insertions, 1 deletions
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 1008c6b6cf..924274191e 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -820,8 +820,12 @@ class Sanity(object):
   def test_specs(self):
     import yaml
     with open('tools/run_tests/sanity/sanity_tests.yaml', 'r') as f:
+      environ={'TEST': 'true'}
+      if _is_use_docker_child():
+        environ['CLANG_FORMAT_SKIP_DOCKER'] = 'true'
       return [self.config.job_spec(cmd['script'].split(),
-                                   timeout_seconds=30*60, environ={'TEST': 'true'},
+                                   timeout_seconds=30*60,
+                                   environ=environ,
                                    cpu_cost=cmd.get('cpu_cost', 1))
               for cmd in yaml.load(f)]