diff --git a/tests/core/pyspec/eth2spec/test/phase0/unittests/fork_choice/test_on_block.py b/tests/core/pyspec/eth2spec/test/phase0/unittests/fork_choice/test_on_block.py
index 70b5a9706..5ca362930 100644
--- a/tests/core/pyspec/eth2spec/test/phase0/unittests/fork_choice/test_on_block.py
+++ b/tests/core/pyspec/eth2spec/test/phase0/unittests/fork_choice/test_on_block.py
@@ -7,8 +7,12 @@ from eth2spec.test.helpers.attestations import (
     next_slots_with_attestations,
     state_transition_with_signed_full_block,
 )
-from eth2spec.test.helpers.block import build_empty_block_for_next_slot, transition_unsigned_block, \
-    build_empty_block, sign_block
+from eth2spec.test.helpers.block import (
+    build_empty_block,
+    build_empty_block_for_next_slot,
+    sign_block,
+    transition_unsigned_block,
+)
 from eth2spec.test.helpers.fork_choice import (
     get_genesis_forkchoice_store,
     run_on_block,
diff --git a/tests/formats/fork_choice/README.md b/tests/formats/fork_choice/README.md
index 03a1a6e9c..90c0aafc7 100644
--- a/tests/formats/fork_choice/README.md
+++ b/tests/formats/fork_choice/README.md
@@ -29,7 +29,7 @@ The parameter that is required for executing `on_tick(store, time)`.
 
 ```yaml
 {
-    tick: int       --  to execute `on_tick(store, time)`.
+    tick: int       -- to execute `on_tick(store, time)`.
     valid: bool     -- optional, default to `true`.
                        If it's `false`, this execution step is expected to be invalid.
 }