diff --git a/packages/fwfh_webview/lib/src/web_view_factory.dart b/packages/fwfh_webview/lib/src/web_view_factory.dart
index d128a0bac..cbaeee3a2 100644
--- a/packages/fwfh_webview/lib/src/web_view_factory.dart
+++ b/packages/fwfh_webview/lib/src/web_view_factory.dart
@@ -105,8 +105,10 @@ mixin WebViewFactory on WidgetFactory {
                 'min-width': '0px',
                 'min-height': '0px',
                 'width': 'auto',
-                if (height != null) 'height': '${height}px',
-                if (width != null) 'width': '${width}px',
+                if (height != null && width != null) ...{
+                  'height': '${height}px',
+                  'width': '${width}px',
+                },
               };
             },
             onWidgets: (meta, widgets) {