diff --git a/src/db/db/dbLayoutToNetlist.cc b/src/db/db/dbLayoutToNetlist.cc
index 043f1629c..8998d222d 100644
--- a/src/db/db/dbLayoutToNetlist.cc
+++ b/src/db/db/dbLayoutToNetlist.cc
@@ -1934,6 +1934,7 @@ db::Region LayoutToNetlist::antenna_check (const db::Region &gate, double gate_a
       }
 
       double r = ratio;
+      double da = 0.0;
       bool skip = false;
 
       adiodes_int.clear ();
@@ -1953,7 +1954,7 @@ db::Region LayoutToNetlist::antenna_check (const db::Region &gate, double gate_a
             skip = true;
           }
         } else {
-          r += adiode_int * dbu * dbu * d->second;
+          da += adiode_int * dbu * dbu * d->second;
         }
 
       }
@@ -1999,7 +2000,7 @@ db::Region LayoutToNetlist::antenna_check (const db::Region &gate, double gate_a
             }
           }
 
-          if (ametal / agate > r + db::epsilon) {
+          if (ametal / (agate + da) > r + db::epsilon) {
 
             db::Shapes &shapes = ly.cell (*cid).shapes (dl.layer ());