diff --git a/src/openrct2/rct1/S4Importer.cpp b/src/openrct2/rct1/S4Importer.cpp
index 81a981c03f..7db116e4d8 100644
--- a/src/openrct2/rct1/S4Importer.cpp
+++ b/src/openrct2/rct1/S4Importer.cpp
@@ -194,6 +194,7 @@ namespace OpenRCT2::RCT1
             ImportSavedView();
 
             // TODO: investigate why Katie's Dreamland.s4 and .sea have different patches
+            // TODO: s4 patch system is broken since .s4 files do not use scenario name, but rather slot
             RCT12::FetchAndApplyScenarioPatch(_s4.ScenarioName, _isScenario);
             FixUrbanPark();
             FixNextGuestNumber(gameState);