diff --git a/cnam/travaux/blanc/build.py b/cnam/travaux/blanc/build.py
index 3ff12ad..7d649f6 100755
--- a/cnam/travaux/blanc/build.py
+++ b/cnam/travaux/blanc/build.py
@@ -26,6 +26,11 @@ def build():
             '-d', TMP,
             document,
         ])
+        run(['biber',
+            '--input-directory', TMP,
+            '--output-directory', TMP,
+            document,
+        ])
         run(command)
         pdf = f'{document}.pdf'
         os.rename(os.path.join(TMP, pdf), pdf)