diff --git a/packages/flutter/lib/src/material/input_decorator.dart b/packages/flutter/lib/src/material/input_decorator.dart
index 8237a4b9e26..39fa2d71ad8 100644
--- a/packages/flutter/lib/src/material/input_decorator.dart
+++ b/packages/flutter/lib/src/material/input_decorator.dart
@@ -726,7 +726,7 @@ class _RenderDecoration extends RenderBox {
   }
 
   static double _minHeight(RenderBox box, double width) {
-    return box == null ? 0.0 : box.getMinIntrinsicWidth(width);
+    return box == null ? 0.0 : box.getMinIntrinsicHeight(width);
   }
 
   static Size _boxSize(RenderBox box) => box == null ? Size.zero : box.size;