diff --git a/capa/rules.py b/capa/rules.py
index beb371c3..b1c1fde3 100644
--- a/capa/rules.py
+++ b/capa/rules.py
@@ -887,7 +887,6 @@ def topologically_order_rules(rules):
     return ret
 
 
-
 class RuleSet(object):
     """
     a ruleset is initialized with a collection of rules, which it verifies and sorts into scopes.
diff --git a/tests/test_function_id.py b/tests/test_function_id.py
index 9adbe8da..c6ad2be9 100644
--- a/tests/test_function_id.py
+++ b/tests/test_function_id.py
@@ -1,4 +1,4 @@
-from fixtures import get_function, extract_function_features
+from fixtures import get_function, pma16_01_extractor, extract_function_features
 
 import capa.features.insn