diff --git a/app/scodoc/sco_pdf.py b/app/scodoc/sco_pdf.py
index ffa11d2594..841f8b3fa5 100755
--- a/app/scodoc/sco_pdf.py
+++ b/app/scodoc/sco_pdf.py
@@ -84,6 +84,8 @@ def SU(s: str) -> str:
         s = html.unescape(s)
         # Remplace les <br> par des <br/>
         s = re.sub(r"<br\s*>", "<br/>", s)
+        # And substitute unicode characters not supported by ReportLab
+        s = s.replace("‐", "-")
         return s