diff --git a/lbry/lbry/testcase.py b/lbry/lbry/testcase.py
index 506631f93..6f92f90af 100644
--- a/lbry/lbry/testcase.py
+++ b/lbry/lbry/testcase.py
@@ -199,10 +199,18 @@ class CommandTestCase(IntegrationTestCase):
 
     def create_tempfile(self, data=None, prefix=None, suffix=None, dir_path=None):
         dir_path = dir_path or self.daemon.conf.download_dir
-        self.file = tempfile.NamedTemporaryFile(prefix=prefix, suffix=suffix, dir=dir_path)
-        self.file.write(data)
-        self.file.flush()
-        return self.file.name
+        file = tempfile.NamedTemporaryFile(prefix=prefix, suffix=suffix, dir=dir_path)
+        file.write(data)
+        file.flush()
+
+        def cleanup():
+            try:
+                file.close()
+            except FileNotFoundError:
+                pass
+
+        self.addCleanup(cleanup)
+        return file.name
 
     async def stream_create(self, name='hovercraft', bid='1.0', data=b'hi!', confirm=True,
                             prefix=None, suffix=None, **kwargs):