diff --git a/src/robusta/core/sinks/transformer.py b/src/robusta/core/sinks/transformer.py
index 719912388..7d2daeb8c 100644
--- a/src/robusta/core/sinks/transformer.py
+++ b/src/robusta/core/sinks/transformer.py
@@ -296,4 +296,4 @@ def write_table(pdf: FPDF, rows: List[list[str]]):
             write_section_header(pdf, section_name)
             write_table(pdf, rows)
 
-        return FileBlock(f"{title}.pdf", pdf.output("", "S"))
+        return FileBlock(f"{title}.pdf", pdf.output())