diff --git a/elementary/messages/blocks.py b/elementary/messages/blocks.py
index a72f5ee4a..34afff53c 100644
--- a/elementary/messages/blocks.py
+++ b/elementary/messages/blocks.py
@@ -86,6 +86,7 @@ class FactBlock(BaseBlock):
     type: Literal["fact"] = "fact"
     title: LineBlock
     value: LineBlock
+    primary: bool = False
 
 
 class FactListBlock(BaseBlock):