lua: Variable.derive fix

1 files changed, 3 insertions, 1 deletions

diff --git a/lang/lua/astal/variable.lua b/lang/lua/astal/variable.lua
index ad59a3f..5832d8a 100644
--- a/lang/lua/astal/variable.lua
+++ b/lang/lua/astal/variable.lua
@@ -260,7 +260,9 @@ function Variable.derive(deps, transform)
     local unsubs = {}
 
     for i, b in ipairs(deps) do
-        unsubs[i] = b:subscribe(update)
+        unsubs[i] = b:subscribe(function()
+            var:set(update())
+        end)
     end
 
     var.variable.on_dropped = function()