diff --git a/Scintilla.NET/Scintilla.cs b/Scintilla.NET/Scintilla.cs
index eaf4063..2ae4c37 100644
--- a/Scintilla.NET/Scintilla.cs
+++ b/Scintilla.NET/Scintilla.cs
@@ -4738,6 +4738,7 @@ public override Font Font
             set
             {
                 var defaultFontStyle = Styles[Style.Default];
+                value = value ?? Parent?.Font ?? Control.DefaultFont;
                 defaultFontStyle.Font = value.Name;
                 defaultFontStyle.SizeF = value.Size;
                 defaultFontStyle.Bold = value.Bold;