diff --git a/tests/unit/entries/conftest.py b/tests/unit/entries/conftest.py
index e24a9aef..31e1a0d8 100644
--- a/tests/unit/entries/conftest.py
+++ b/tests/unit/entries/conftest.py
@@ -57,7 +57,7 @@ def ext():
 
 @pytest.fixture
 def thumbnail_ext():
-    return "yall"
+    return "jpg"
 
 
 @pytest.fixture