diff --git a/scripts/upgrade b/scripts/upgrade
index f16f6b4..bd8ec60 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -84,7 +84,7 @@ then
 	ynh_script_progression --message="Upgrading source files..."
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$install_dir/build"
+	ynh_setup_source --dest_dir="$install_dir/build"  --full_replace=1
 fi
 
 chmod 750 "$install_dir"