diff --git a/crates/core/src/message/content.rs b/crates/core/src/message/content.rs
index 02d4277..e35f40b 100644
--- a/crates/core/src/message/content.rs
+++ b/crates/core/src/message/content.rs
@@ -53,6 +53,7 @@ pub struct AttachmentInfo {
     /// Page count reported by the extractor, if any.
     pub extracted_page_count: Option<u32>,
     /// Whether the extracted text came from OCR.
+    #[serde(default)]
     pub extracted_is_ocr: bool,
 }