diff --git a/scripts/upgrade b/scripts/upgrade
index 320506d..7d79c80 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -47,7 +47,7 @@ fi
 #=================================================
 # INSTALL NODEJS
 #=================================================
-ynh_install_nodejs $NODEJS_VERSION
+ynh_install_nodejs $nodejs_version
 
 #=================================================
 # CREATE DEDICATED USER