diff --git a/src/openrct2/ReplayManager.cpp b/src/openrct2/ReplayManager.cpp
index 783c838ec6..9ac73ae5b6 100644
--- a/src/openrct2/ReplayManager.cpp
+++ b/src/openrct2/ReplayManager.cpp
@@ -713,9 +713,9 @@ namespace OpenRCT2
             if (serialiser.IsLoading())
             {
                 command.action = GameActions::Create(static_cast<GameCommand>(actionType));
-                Guard::Assert(command.action != nullptr);
             }
 
+            Guard::Assert(command.action != nullptr);
             command.action->Serialise(serialiser);
 
             return true;