diff --git a/src/allmydata/util/_python3.py b/src/allmydata/util/_python3.py
index 18575d624..51c7ad20f 100644
--- a/src/allmydata/util/_python3.py
+++ b/src/allmydata/util/_python3.py
@@ -102,7 +102,6 @@ PORTED_MODULES = [
     "allmydata.test.matchers",
     "allmydata.test.mutable",
     "allmydata.test.mutable.util",
-    "allmydata.test.python3_tests",
     "allmydata.test.storage_plugin",
     "allmydata.test.strategies",
     "allmydata.test.web",