diff --git a/install_elog.sh b/install_elog.sh
index cf86f1aa..a00f53aa 100644
--- a/install_elog.sh
+++ b/install_elog.sh
@@ -42,6 +42,13 @@ EOF
 chmod o+rx /tmp/elog_instance
 chmod o+rx /tmp/elog_instance/users.xml
 
+echo "=== DEBUG: droits users.xml ==="
+ls -l "$INSTANCE_DIR/users.xml"
+echo "=== DEBUG: contenu users.xml ==="
+cat "$INSTANCE_DIR/users.xml"
+echo "=== DEBUG: qui peut lire ? ==="
+sudo -u nobody cat "$INSTANCE_DIR/users.xml" || echo "❌ nobody ne peut pas lire"
+
 # =======================
 # 4. Configuration ELOG
 # =======================