diff --git a/src/calibre/ebooks/metadata/pdf.py b/src/calibre/ebooks/metadata/pdf.py
index 769f169984..72376a5008 100644
--- a/src/calibre/ebooks/metadata/pdf.py
+++ b/src/calibre/ebooks/metadata/pdf.py
@@ -66,7 +66,7 @@ def set_metadata(stream, mi):
         out_pdf.addPage(page)
 
     writer.start()
-    writer.join(10) # Wait 10 secs for writing to complete
+    writer.join(15) # Wait 15 secs for writing to complete
     out_pdf.killed = True
     writer.join()
     if out_pdf.killed: