diff --git a/scada-common/psil.lua b/scada-common/psil.lua
index 82e99f6..b646d37 100644
--- a/scada-common/psil.lua
+++ b/scada-common/psil.lua
@@ -53,12 +53,12 @@ function psil.create()
         if ic[key] == nil then alloc(key) end
 
         if ic[key].value ~= value then
+            ic[key].value = value
+
             for i = 1, #ic[key].subscribers do
                 ic[key].subscribers[i].notify(value)
             end
         end
-
-        ic[key].value = value
     end
 
     -- publish a toggled boolean value to a given key, passing it to all subscribers if it has changed<br>
diff --git a/scada-common/util.lua b/scada-common/util.lua
index 2a2f81a..8230fca 100644
--- a/scada-common/util.lua
+++ b/scada-common/util.lua
@@ -24,7 +24,7 @@ local t_pack   = table.pack
 local util = {}
 
 -- scada-common version
-util.version = "1.5.2"
+util.version = "1.5.3"
 
 util.TICK_TIME_S = 0.05
 util.TICK_TIME_MS = 50