diff --git a/resources/quality/flsun_sr/flsun_sr_fine.inst.cfg b/resources/quality/flsun_sr/flsun_sr_fine.inst.cfg
index 1e460ba4ae..c6943185b8 100644
--- a/resources/quality/flsun_sr/flsun_sr_fine.inst.cfg
+++ b/resources/quality/flsun_sr/flsun_sr_fine.inst.cfg
@@ -27,7 +27,6 @@ infill_before_walls = False
 infill_enable_travel_optimization = False
 infill_support_angle = 50
 ironing_enabled = False
-max_skin_angle_for_expansion = 20
 retract_at_layer_change = False
 retraction_amount = 6.5
 retraction_hop_only_when_collides = True
diff --git a/resources/quality/flsun_sr/flsun_sr_normal.inst.cfg b/resources/quality/flsun_sr/flsun_sr_normal.inst.cfg
index 826a2524bb..a5c43dc3d3 100644
--- a/resources/quality/flsun_sr/flsun_sr_normal.inst.cfg
+++ b/resources/quality/flsun_sr/flsun_sr_normal.inst.cfg
@@ -27,7 +27,6 @@ infill_before_walls = False
 infill_enable_travel_optimization = False
 infill_support_angle = 50
 ironing_enabled = False
-max_skin_angle_for_expansion = 20
 retract_at_layer_change = False
 retraction_amount = 6.5
 retraction_hop_only_when_collides = True