diff --git a/formats/acknowledgement.py b/formats/acknowledgement.py
index 40371af3cf1273f2c15c6776c0c54efa1d410f2a..ca4ea801845055212643db1f32aef78207c1e714 100644
--- a/formats/acknowledgement.py
+++ b/formats/acknowledgement.py
@@ -23,8 +23,14 @@ acknowledgement_schema = {
         },
         "approved": {
             "type": "boolean",
-            "description": "Human-in-the-loop approval. 1 - Plan approved; 0 - Plan Rejected",
+            "description": "Human-in-the-loop approval."
+            + "1 - Plan approved; 0 - Plan Rejected",
         },
     },
-    "required": ["message_type","autonomy_engine_plan_ID", "platform_ID", "approved"],
+    "required": [
+        "message_type",
+        "autonomy_engine_plan_ID",
+        "platform_ID",
+        "approved",
+    ],
 }
diff --git a/tests/fixtures/schemas.py b/tests/fixtures/schemas.py
index 2c94dd823076a98dac804a9746498b6110a96dad..d3a9ec196affb1eb89d399669039bf648b6eb08c 100644
--- a/tests/fixtures/schemas.py
+++ b/tests/fixtures/schemas.py
@@ -69,14 +69,19 @@ acknowledgement_schema = {
         },
         "approved": {
             "type": "boolean",
-            "description": "Human-in-the-loop approval. 1 - Plan approved; 0 - Plan Rejected",
+            "description": "Human-in-the-loop approval. "
+            + "1 - Plan approved; 0 - Plan Rejected",
         },
     },
-    "required": ["message_type","autonomy_engine_plan_ID", "platform_ID", "approved"],
+    "required": [
+        "message_type",
+        "autonomy_engine_plan_ID",
+        "platform_ID",
+        "approved",
+    ],
 }
 
 
-
 action_schema = {
     "type": "object",
     "properties": {