diff --git a/eos/effectHandlerHelpers.py b/eos/effectHandlerHelpers.py
index 7f19c4382..75b51715d 100644
--- a/eos/effectHandlerHelpers.py
+++ b/eos/effectHandlerHelpers.py
@@ -131,14 +131,15 @@ class HandledModuleList(HandledList):
                 self.remove(mod)
             return
 
-        # fix for #529, where a module may be in incorrect state after CCP changes mechanics of module
-        if not mod.isValidState(mod.state):
-            mod.state = eos.types.State.ONLINE
-
         mod.position = len(self)
         HandledList.append(self, mod)
         if mod.isInvalid:
             self.remove(mod)
+            return
+
+        # fix for #529, where a module may be in incorrect state after CCP changes mechanics of module
+        if not mod.isValidState(mod.state):
+            mod.state = eos.types.State.ONLINE
 
     def insert(self, index, mod):
         mod.position = index