diff --git a/SourceGen/DisplayList.cs b/SourceGen/DisplayList.cs
index 23df263..f8941af 100644
--- a/SourceGen/DisplayList.cs
+++ b/SourceGen/DisplayList.cs
@@ -366,7 +366,10 @@ namespace SourceGen {
 
 
             // Private constructor -- create instances with factory methods.
-            private FormattedParts() { }
+            private FormattedParts() {
+                Offset = Addr = Bytes = Flags = Attr = Label = Opcode = Operand = Comment =
+                    string.Empty;
+            }
 
             /// <summary>
             /// Clones the specified object.
diff --git a/SourceGen/Exporter.cs b/SourceGen/Exporter.cs
index 67d61d3..b1adc25 100644
--- a/SourceGen/Exporter.cs
+++ b/SourceGen/Exporter.cs
@@ -502,7 +502,7 @@ namespace SourceGen {
             bool suppressLabel = false;
             if (LongLabelNewLine && (line.LineType == LineListGen.Line.Type.Code ||
                     line.LineType == LineListGen.Line.Type.Data)) {
-                int labelLen = string.IsNullOrEmpty(parts.Label) ? 0 : parts.Label.Length;
+                int labelLen = parts.Label.Length;
                 if (labelLen > maxLabelLen) {
                     // put on its own line
                     string lstr;