diff --git a/src/diffcalc_API/models/ub.py b/src/diffcalc_API/models/ub.py
index 27b6cb2..7fbb842 100644
--- a/src/diffcalc_API/models/ub.py
+++ b/src/diffcalc_API/models/ub.py
@@ -25,6 +25,7 @@ class PositionModel(BaseModel):
 
 
 class SetLatticeParams(BaseModel):
+    name: Optional[str] = None
     system: Optional[str] = None
     a: Optional[float] = None
     b: Optional[float] = None
diff --git a/src/diffcalc_API/services/ub.py b/src/diffcalc_API/services/ub.py
index 162c4d3..9e55d33 100644
--- a/src/diffcalc_API/services/ub.py
+++ b/src/diffcalc_API/services/ub.py
@@ -188,7 +188,11 @@ async def set_lattice(
 ) -> None:
     hklcalc = await store.load(name, collection)
 
-    hklcalc.ubcalc.set_lattice(name=name, **params.dict())
+    input_params = params.dict()
+    crystal_name = name if not params.name else params.name
+    input_params.pop("name")
+
+    hklcalc.ubcalc.set_lattice(name=crystal_name, **input_params)
 
     await store.save(name, hklcalc, collection)