diff --git a/src/openrct2/rct1/S4Importer.cpp b/src/openrct2/rct1/S4Importer.cpp
index 04291537a1..6ad0717830 100644
--- a/src/openrct2/rct1/S4Importer.cpp
+++ b/src/openrct2/rct1/S4Importer.cpp
@@ -1473,8 +1473,18 @@ private:
         dst->pathfind_goal.z = 0xFF;
         dst->pathfind_goal.direction = 0xFF;
 
-        dst->favourite_ride = src->favourite_ride;
-        dst->favourite_ride_rating = src->favourite_ride_rating;
+        // Guests' favourite ride was only saved in LL.
+        // Set it to N/A if the save comes from the original or AA.
+        if (_gameVersion == FILE_VERSION_RCT1_LL)
+        {
+            dst->favourite_ride = src->favourite_ride;
+            dst->favourite_ride_rating = src->favourite_ride_rating;
+        }
+        else
+        {
+            dst->favourite_ride = RIDE_INDEX_NULL;
+            dst->favourite_ride_rating = 0;
+        }
 
         dst->item_standard_flags = src->item_standard_flags;