diff --git a/api/src/opentrons/protocol_engine/types.py b/api/src/opentrons/protocol_engine/types.py
index 6c19324870a2..54853451569c 100644
--- a/api/src/opentrons/protocol_engine/types.py
+++ b/api/src/opentrons/protocol_engine/types.py
@@ -888,12 +888,12 @@ class QuadrantNozzleLayoutConfiguration(BaseModel):
         description="The primary nozzle to use in the layout configuration. This nozzle will update the critical point of the current pipette. For now, this is also the back left corner of your rectangle.",
     )
     frontRightNozzle: Optional[str] = Field(
-        ...,
+        None,
         regex=NOZZLE_NAME_REGEX,
         description="The front right nozzle in your configuration.",
     )
     backLeftNozzle: Optional[str] = Field(
-        ...,
+        None,
         regex=NOZZLE_NAME_REGEX,
         description="The back left nozzle in your configuration.",
     )