diff --git a/packages/pdfjs-viewer/src/pages.ts b/packages/pdfjs-viewer/src/pages.ts
index 67896e2567..89403eeed3 100644
--- a/packages/pdfjs-viewer/src/pages.ts
+++ b/packages/pdfjs-viewer/src/pages.ts
@@ -78,6 +78,6 @@ async function generateThumbnail(pageNumber: number) {
             dataUrl
         }, window.location.origin);
     } catch (error) {
-        console.error(`Error generating thumbnail for page ${pageNumber}:`, error);
+        console.error(`Error generating thumbnail for page %d:`, pageNumber, error);
     }
 }