diff --git a/roles/tcgui/vars/os_Ubuntu_20.yml b/roles/tcgui/vars/os_Ubuntu_20.yml
new file mode 100644
index 0000000..77fe55d
--- /dev/null
+++ b/roles/tcgui/vars/os_Ubuntu_20.yml
@@ -0,0 +1,3 @@
+---
+ntopng_dependency_packages:
+  - python3-flask