diff --git a/source_synchronizer.lua b/source_synchronizer.lua
index 08e4f21..5d97216 100644
--- a/source_synchronizer.lua
+++ b/source_synchronizer.lua
@@ -53,16 +53,11 @@ function timer_callback()
 			-- get settings of a slave source
 			local slave_props = obs.obs_source_get_settings(slave_source)
 			-- also read the slave props, no need to update anything if there's no need to update anything ;)
-			local slave_window = obs.obs_data_get_string(master_props, 'window')
+			local slave_window = obs.obs_data_get_string(slave_props, 'window')
 
 			if slave_window ~= master_window then
-				-- now that we have both, create a NEW temporary data object (again, no other way from lua, except ffi since 2020)			
-				local new_slave_props = obs.obs_data_create()
 				-- copy/paste the window property from the master to the slave
 				obs.obs_data_set_string(slave_props, 'window', master_window)
-				-- set the new temporary data object as properties for the slave source
-				obs.obs_data_set_obj(new_slave_props, "sourceSettings", slave_props)
-
 				-- the copied source won't update unless...
 				obs.obs_source_update(slave_source, slave_props)
 				--obs.obs_frontend_open_source_properties(slave_source_name)