diff --git a/pyxform/xls2json.py b/pyxform/xls2json.py
index 75c2528b..1ae15bb1 100644
--- a/pyxform/xls2json.py
+++ b/pyxform/xls2json.py
@@ -1310,7 +1310,13 @@ def workbook_to_json(
 
             if row.get("default"):
                 new_dict["default"] = process_image_default(row["default"])
-            parameters_generic.validate(parameters=parameters, allowed=("max-pixels","app",))
+            parameters_generic.validate(
+                parameters=parameters,
+                allowed=(
+                    "max-pixels",
+                    "app",
+                ),
+            )
             if "max-pixels" in parameters.keys():
                 try:
                     int(parameters["max-pixels"])
@@ -1326,13 +1332,13 @@ def workbook_to_json(
                 )
 
             if "app" in parameters.keys():
-                android_package_regex_pattern = "^[a-z][a-z0-9_]*(\.[a-z0-9_]+)+[0-9a-z_]$"
+                android_package_regex_pattern = (
+                    "^[a-z][a-z0-9_]*(\.[a-z0-9_]+)+[0-9a-z_]$"
+                )
                 app_package_name = str(parameters["app"])
                 if re.fullmatch(android_package_regex_pattern, app_package_name):
                     new_dict["control"] = new_dict.get("control", {})
-                    new_dict["control"].update(
-                        {"intent": app_package_name}
-                    )
+                    new_dict["control"].update({"intent": app_package_name})
                 else:
                     raise PyXFormError("Invalid Android package name format")
 
diff --git a/tests/test_image_app_parameter.py b/tests/test_image_app_parameter.py
index 7b57b5e7..8fd25007 100644
--- a/tests/test_image_app_parameter.py
+++ b/tests/test_image_app_parameter.py
@@ -6,13 +6,12 @@
 
 
 class ImageAppParameterTest(PyxformTestCase):
-
     def test_valid_android_package_name(self):
         self.assertPyxformXform(
             name="data",
             md="""
-            | survey |        |          |       |                                        |
-            |        | type   | name     | label | parameters                             |
+            | survey |        |          |       |                                     |
+            |        | type   | name     | label | parameters                          |
             |        | image  | my_image | Image | app=com.jeyluta.timestampcamerafree |
             """,
             xml__xpath_match=[
@@ -25,11 +24,9 @@ def test_invalid_android_package_name(self):
             name="data",
             errored=True,
             md="""
-            | survey |        |          |       |                                        |
-            |        | type   | name     | label | parameters                             |
+            | survey |        |          |       |               |
+            |        | type   | name     | label | parameters    |
             |        | image  | my_image | Image | app=something |
             """,
-            error__contains=[
-                "Invalid Android package name format"
-            ],
-        )    
\ No newline at end of file
+            error__contains=["Invalid Android package name format"],
+        )