diff --git a/lib/src/giphy_attachment.dart b/lib/src/giphy_attachment.dart
index fbb2e585..d6d378d2 100644
--- a/lib/src/giphy_attachment.dart
+++ b/lib/src/giphy_attachment.dart
@@ -46,8 +46,14 @@ class GiphyAttachment extends StatelessWidget {
       children: [
         Card(
           clipBehavior: Clip.antiAlias,
-          shape:
-              RoundedRectangleBorder(borderRadius: BorderRadius.circular(8.0)),
+          shape: RoundedRectangleBorder(
+            borderRadius: BorderRadius.only(
+              topRight: Radius.circular(16.0),
+              bottomRight: Radius.circular(0.0),
+              topLeft: Radius.circular(16.0),
+              bottomLeft: Radius.circular(16.0),
+            ),
+          ),
           child: Column(
             mainAxisSize: MainAxisSize.min,
             crossAxisAlignment: CrossAxisAlignment.stretch,