diff --git a/src/aind_data_schema/core/procedures.py b/src/aind_data_schema/core/procedures.py
index 9ce0a438..912d9e53 100644
--- a/src/aind_data_schema/core/procedures.py
+++ b/src/aind_data_schema/core/procedures.py
@@ -568,7 +568,9 @@ class MyomatrixContact(AindModel):
 class MyomatrixThread(AindModel):
     """Description of a thread of a myomatrix array"""
 
-    ground_electrode_location: MouseAnatomicalStructure.BODY_PARTS._ONE_OF = Field(..., title="Location of ground electrode")
+    ground_electrode_location: MouseAnatomicalStructure.BODY_PARTS._ONE_OF = Field(
+        ..., title="Location of ground electrode"
+        )
     contacts: List[MyomatrixContact] = Field(..., title="Contacts")