diff --git a/debian.master/config/config.common.ubuntu b/debian.master/config/config.common.ubuntu
index 3d62522..605c460 100644
--- a/debian.master/config/config.common.ubuntu
+++ b/debian.master/config/config.common.ubuntu
@@ -4102,7 +4102,7 @@ CONFIG_USB_ZC0301=m
 CONFIG_USB_ZD1201=m
 CONFIG_USB_ZERO=m
 CONFIG_USB_ZR364XX=m
-# CONFIG_USER_NS is not set
+CONFIG_USER_NS=y
 # CONFIG_USER_SCHED is not set
 CONFIG_USER_STACKTRACE_SUPPORT=y
 CONFIG_USE_GENERIC_SMP_HELPERS=y