diff --git a/SourceGen/DisasmProject.cs b/SourceGen/DisasmProject.cs
index 527c1c2..788455f 100644
--- a/SourceGen/DisasmProject.cs
+++ b/SourceGen/DisasmProject.cs
@@ -1541,9 +1541,8 @@ namespace SourceGen {
                                     sym.SymbolSource == Symbol.Source.Platform) {
                                 DefSymbol defSym = sym as DefSymbol;
                                 int adj = 0;
-                                if (operandOffset >= 0) {
-                                    adj = defSym.Value - operandOffset;
-                                }
+                                Debug.Assert(operandOffset < 0);    // outside file scope
+                                adj = defSym.Value - attr.OperandAddress;
                                 defSym.Xrefs.Add(
                                     new XrefSet.Xref(offset, true, xrefType, accType, adj));
                             } else {
diff --git a/SourceGen/Visualization.cs b/SourceGen/Visualization.cs
index 7fa6a82..14acb16 100644
--- a/SourceGen/Visualization.cs
+++ b/SourceGen/Visualization.cs
@@ -311,7 +311,7 @@ namespace SourceGen {
             using (DrawingContext dc = dv.RenderOpen()) {
                 dc.DrawRectangle(Brushes.Black, null, new Rect(0, 0, bounds.Width, bounds.Height));
                 Pen pen = new Pen(Brushes.White, 1.0);
-                dc.DrawGeometry(Brushes.White, pen, geo);
+                dc.DrawGeometry(null, pen, geo);
             }
             bitmap.Render(dv);