diff --git a/samples/client/petstore/python/SwaggerPetstore-python/testfiles/foo.png b/samples/client/petstore/python/SwaggerPetstore-python/testfiles/foo.png
new file mode 100644
index 0000000000..a9b12cf592
Binary files /dev/null and b/samples/client/petstore/python/SwaggerPetstore-python/testfiles/foo.png differ
diff --git a/samples/client/petstore/python/SwaggerPetstore-python/testfiles/foo.txt b/samples/client/petstore/python/SwaggerPetstore-python/testfiles/foo.txt
deleted file mode 100644
index 3b18e512db..0000000000
--- a/samples/client/petstore/python/SwaggerPetstore-python/testfiles/foo.txt
+++ /dev/null
@@ -1 +0,0 @@
-hello world
diff --git a/samples/client/petstore/python/SwaggerPetstore-python/tests/test_pet_api.py b/samples/client/petstore/python/SwaggerPetstore-python/tests/test_pet_api.py
index 90793aecb1..b6088ae34b 100644
--- a/samples/client/petstore/python/SwaggerPetstore-python/tests/test_pet_api.py
+++ b/samples/client/petstore/python/SwaggerPetstore-python/tests/test_pet_api.py
@@ -47,7 +47,7 @@ class PetApiTests(unittest.TestCase):
     def setUpFiles(self):
         self.test_file_dir = os.path.join(os.path.dirname(__file__), "..", "testfiles")
         self.test_file_dir = os.path.realpath(self.test_file_dir)
-        self.foo = os.path.join(self.test_file_dir, "foo.txt")
+        self.foo = os.path.join(self.test_file_dir, "foo.png")
 
     def test_1_add_pet(self):
         try: