diff --git a/stix2/test/v20/pattern_ast_overrides.py b/stix2/test/v20/pattern_ast_overrides.py
index be945a8..16473ba 100644
--- a/stix2/test/v20/pattern_ast_overrides.py
+++ b/stix2/test/v20/pattern_ast_overrides.py
@@ -16,4 +16,3 @@ class StringConstantForTesting(StringConstant):
 
 class StartStopQualifierForTesting(StartStopQualifier):
     pass
-
diff --git a/stix2/test/v20/test_pattern_expressions.py b/stix2/test/v20/test_pattern_expressions.py
index fe9604f..9579ef4 100644
--- a/stix2/test/v20/test_pattern_expressions.py
+++ b/stix2/test/v20/test_pattern_expressions.py
@@ -8,6 +8,8 @@ from stix2.pattern_visitor import create_pattern_object
 import stix2.patterns
 import stix2.utils
 
+# flake8 does not approve of star imports.
+# flake8: noqa: F405
 from .pattern_ast_overrides import *
 
 
diff --git a/stix2/test/v21/pattern_ast_overrides.py b/stix2/test/v21/pattern_ast_overrides.py
index be945a8..16473ba 100644
--- a/stix2/test/v21/pattern_ast_overrides.py
+++ b/stix2/test/v21/pattern_ast_overrides.py
@@ -16,4 +16,3 @@ class StringConstantForTesting(StringConstant):
 
 class StartStopQualifierForTesting(StartStopQualifier):
     pass
-
diff --git a/stix2/test/v21/test_pattern_expressions.py b/stix2/test/v21/test_pattern_expressions.py
index d1e5731..d171879 100644
--- a/stix2/test/v21/test_pattern_expressions.py
+++ b/stix2/test/v21/test_pattern_expressions.py
@@ -9,6 +9,8 @@ from stix2.pattern_visitor import create_pattern_object
 import stix2.patterns
 import stix2.utils
 
+# flake8 does not approve of star imports.
+# flake8: noqa: F405
 from .pattern_ast_overrides import *