diff --git a/stubs/rdfdb/graphfile_test.pyi b/stubs/rdfdb/graphfile_test.pyi
deleted file mode 100644
--- a/stubs/rdfdb/graphfile_test.pyi
+++ /dev/null
@@ -1,8 +0,0 @@
-# Stubs for rdfdb.graphfile_test (Python 3)
-#
-# NOTE: This dynamically typed stub was automatically generated by stubgen.
-
-import unittest
-
-class TestGraphFileOutput(unittest.TestCase):
-    def testMaintainsN3PrefixesFromInput(self): ...