diff --git a/tests/lib/test_constructor.py b/tests/lib/test_constructor.py
index 8ed1928d..0a0650b3 100644
--- a/tests/lib/test_constructor.py
+++ b/tests/lib/test_constructor.py
@@ -5,6 +5,9 @@
 import datetime
 import yaml.tokens
 
+# Used in the construct-python-name-module test.
+import signal
+
 def execute(code):
     global value
     exec(code)
@@ -290,7 +293,6 @@ def test_subclass_blacklist_types(data_filename, verbose=False):
 
 test_subclass_blacklist_types.unittest = ['.subclass_blacklist']
 
-import signal
 if __name__ == '__main__':
     import sys, test_constructor
     sys.modules['test_constructor'] = sys.modules['__main__']