diff --git a/add_curve_sapling/__init__.py b/add_curve_sapling/__init__.py
index e5b8815757dcfc3acc6e5f2ba1ae38668bbe93aa..9bcd1492335b8110e9e0ff8f1c54878e705d6627 100644
--- a/add_curve_sapling/__init__.py
+++ b/add_curve_sapling/__init__.py
@@ -701,7 +701,7 @@ class AddTree(Operator):
         items=objectList,
         update=update_leaves
         )
-    bend = FloatProperty(
+    bend: FloatProperty(
         name='Leaf Bend',
         description='The proportion of bending applied to the leaf (Bend)',
         min=0.0,