diff --git a/kicad.py b/kicad.py
index 81d5467..5906cdf 100644
--- a/kicad.py
+++ b/kicad.py
@@ -1590,7 +1590,7 @@ def _wire(obj,fill=False):
             # related to some setup parameter? I am guessing this is half the
             # zone.min_thickness setting here.
 
-            offset = self.zone_inflate + z.min_thickness
+            offset = self.zone_inflate + z.min_thickness*0.5
 
             if not zone_holes or (
               self.add_feature and self.make_sketch and self.zone_merge_holes):