diff --git a/pandas/tests/extension/decimal_array/__init__.py b/pandas/tests/extension/decimal_array/__init__.py
index 05bb5f95b0fa6..9a0071e1c776e 100644
--- a/pandas/tests/extension/decimal_array/__init__.py
+++ b/pandas/tests/extension/decimal_array/__init__.py
@@ -1 +1,4 @@
-from .array import DecimalArray, DecimalDtype
\ No newline at end of file
+from .array import DecimalArray, DecimalDtype
+
+
+__all__ = ['DecimalArray', 'DecimalDtype']
diff --git a/pandas/tests/extension/json_array/__init__.py b/pandas/tests/extension/json_array/__init__.py
index e69de29bb2d1d..a314a9c10d3dd 100644
--- a/pandas/tests/extension/json_array/__init__.py
+++ b/pandas/tests/extension/json_array/__init__.py
@@ -0,0 +1,3 @@
+from .array import JSONArray, JSONDtype
+
+__all__ = ['JSONArray', 'JSONDtype']