diff --git a/capa/rules.py b/capa/rules/__init__.py
similarity index 100%
rename from capa/rules.py
rename to capa/rules/__init__.py
diff --git a/tests/test_rules.py b/tests/test_rules.py
index 466ac306..fe154c39 100644
--- a/tests/test_rules.py
+++ b/tests/test_rules.py
@@ -31,7 +31,6 @@ from capa.features.common import (
     Substring,
     FeatureAccess,
 )
-from capa.features.address import AbsoluteVirtualAddress
 
 ADDR1 = capa.features.address.AbsoluteVirtualAddress(0x401001)
 ADDR2 = capa.features.address.AbsoluteVirtualAddress(0x401002)