diff --git a/SignalServiceKit/protobuf/SignalService.proto b/SignalServiceKit/protobuf/SignalService.proto
index 73c392c600..080f6b2380 100644
--- a/SignalServiceKit/protobuf/SignalService.proto
+++ b/SignalServiceKit/protobuf/SignalService.proto
@@ -227,11 +227,11 @@ message DataMessage {
 
   message Preview {
     // @required
-    optional string            url   = 1;
-    optional string            title = 2;
-    optional AttachmentPointer image = 3;
+    optional string            url                = 1;
+    optional string            title              = 2;
+    optional AttachmentPointer image              = 3;
     optional string            previewDescription = 4;
-    optional uint64            date = 5;
+    optional uint64            date               = 5;
   }
 
   message Sticker {