diff --git a/tests/core/pyspec/eth2spec/test/sanity/__init__.py b/tests/core/pyspec/eth2spec/test/phase_0/sanity/__init__.py
similarity index 100%
rename from tests/core/pyspec/eth2spec/test/sanity/__init__.py
rename to tests/core/pyspec/eth2spec/test/phase_0/sanity/__init__.py
diff --git a/tests/core/pyspec/eth2spec/test/sanity/test_blocks.py b/tests/core/pyspec/eth2spec/test/phase_0/sanity/test_blocks.py
similarity index 100%
rename from tests/core/pyspec/eth2spec/test/sanity/test_blocks.py
rename to tests/core/pyspec/eth2spec/test/phase_0/sanity/test_blocks.py
diff --git a/tests/core/pyspec/eth2spec/test/sanity/test_slots.py b/tests/core/pyspec/eth2spec/test/phase_0/sanity/test_slots.py
similarity index 100%
rename from tests/core/pyspec/eth2spec/test/sanity/test_slots.py
rename to tests/core/pyspec/eth2spec/test/phase_0/sanity/test_slots.py
diff --git a/tests/generators/sanity/main.py b/tests/generators/sanity/main.py
index 74c85a9e8..89fb89838 100644
--- a/tests/generators/sanity/main.py
+++ b/tests/generators/sanity/main.py
@@ -5,7 +5,7 @@ from gen_base import gen_runner, gen_typing
 from gen_from_tests.gen import generate_from_tests
 
 from eth2spec.test.context import PHASE0
-from eth2spec.test.sanity import test_blocks, test_slots
+from eth2spec.test.phase_0.sanity import test_blocks, test_slots
 from eth2spec.config import config_util
 from eth2spec.phase0 import spec as spec_phase0
 from eth2spec.phase1 import spec as spec_phase1