diff --git a/add_curve_ivygen.py b/add_curve_ivygen.py
index 99f9e563b871e5cc1cf1079d189da0493e82f8a7..30fdb33608924b8808bcdfc4fb579d1c74750c48 100644
--- a/add_curve_ivygen.py
+++ b/add_curve_ivygen.py
@@ -54,7 +54,7 @@ def createIvyGeometry(IVY, growLeaves):
     curve = bpy.data.curves.new("IVY", type='CURVE')
     curve.dimensions = '3D'
     curve.bevel_depth = 1
-    curve.use_fill_front = curve.use_fill_back = False
+    curve.fill_mode = 'FULL'
     curve.resolution_u = 4
 
     if growLeaves:
diff --git a/add_curve_sapling/utils.py b/add_curve_sapling/utils.py
index 98b6f741f3e288bc59f6a6bc2f2245150bcb8dc8..16a4509ee969dd3b52dd0d10dcae8f898ab36e8c 100644
--- a/add_curve_sapling/utils.py
+++ b/add_curve_sapling/utils.py
@@ -484,8 +484,7 @@ def addTree(props):
         bpy.context.scene.objects.link(treeOb)
 
         cu.dimensions = '3D'
-        cu.use_fill_back = False
-        cu.use_fill_front = False
+        cu.fill_mode = 'FULL'
         cu.bevel_depth = bevelDepth
         cu.bevel_resolution = bevelRes
 
diff --git a/add_curve_torus_knots.py b/add_curve_torus_knots.py
index ed0329e1549673eeddf04fab5b6119da0508d56f..5854d42f6260087e7f5773e32e60a47c50b4de80 100644
--- a/add_curve_torus_knots.py
+++ b/add_curve_torus_knots.py
@@ -89,8 +89,7 @@ def create_torus_knot(self, context):
     if self.geo_surf:
         curve_data.bevel_depth = self.geo_bDepth
         curve_data.bevel_resolution = self.geo_bRes
-        curve_data.use_fill_front = False
-        curve_data.use_fill_back = False
+        curve_data.fill_mode = 'FULL'
         curve_data.extrude = self.geo_extrude
         #curve_data.offset = self.geo_width # removed, somehow screws things up all of a sudden
         curve_data.resolution_u = self.geo_res
diff --git a/animation_rotobezier.py b/animation_rotobezier.py
index 3f4f1003f1a733890cf138d15914dbce11e7839b..7003bd3550dd69c1a0e8bf79b0422a008f6d78ef 100644
--- a/animation_rotobezier.py
+++ b/animation_rotobezier.py
@@ -283,8 +283,7 @@ def MakeMatte (Type):
     Curve = Obj.data
     
     Curve.dimensions = '2D'
-    Curve.use_fill_front = False
-    Curve.use_fill_back = False
+    Curve.fill_mode = 'NONE'
 
 
 class CURVE_OT_make_white_matte_rotobezier(bpy.types.Operator):