diff --git a/src/Mod/OpenSCAD/importCSG.py b/src/Mod/OpenSCAD/importCSG.py
index 8871b4eb84..31b576a19d 100644
--- a/src/Mod/OpenSCAD/importCSG.py
+++ b/src/Mod/OpenSCAD/importCSG.py
@@ -1034,7 +1034,7 @@ def p_circle_action(p) :
     n = int(p[3]['$fn'])
     fnmax = FreeCAD.ParamGet(\
         "User parameter:BaseApp/Preferences/Mod/OpenSCAD").\
-        GetInt('useMaxFN',50)
+        GetInt('useMaxFN',16)
     # Alter Max polygon to control if polygons are circles or polygons
     # in the modules preferences
     import Draft