diff --git a/Editor/UI/CodeArea.cs b/Editor/UI/CodeArea.cs
index 0d224b4..e3122e8 100644
--- a/Editor/UI/CodeArea.cs
+++ b/Editor/UI/CodeArea.cs
@@ -16,7 +16,11 @@ public static void Draw(ref string rawText, ref string highlightedText, SyntaxHi
             editor.SaveBackup();
             editor.controlID = controlId;
             editor.position = rect;
+#if UNITY_2023_1_OR_NEWER
             editor.isMultiline = true;
+#else
+            editor.multiline = true;
+#endif
             editor.style = style;
             editor.DetectFocusChange();
             HandleTextFieldEvent(rect, controlId, content, ref highlightedText, theme, style, editor);