diff --git a/lib/src/controls/form/text_box.dart b/lib/src/controls/form/text_box.dart
index 8abe243a5..9268732e8 100644
--- a/lib/src/controls/form/text_box.dart
+++ b/lib/src/controls/form/text_box.dart
@@ -910,7 +910,9 @@ class _TextBoxState extends State<TextBox>
   // TextBox has top alignment by default, unless it has decoration
   // like a prefix or suffix, in which case it's aligned to the center.
   TextAlignVertical get _textAlignVertical {
-    return widget.textAlignVertical ?? TextAlignVertical.top;
+    if (widget.textAlignVertical != null) return widget.textAlignVertical!;
+    if (widget.maxLines == 1) return TextAlignVertical.center;
+    return TextAlignVertical.top;
   }
 
   Widget _addTextDependentAttachments(