diff --git a/src/openrct2/actions/GameAction.h b/src/openrct2/actions/GameAction.h
index 352bcab7bb..59852e3f7b 100644
--- a/src/openrct2/actions/GameAction.h
+++ b/src/openrct2/actions/GameAction.h
@@ -71,7 +71,7 @@ public:
     GA_ERROR Error = GA_ERROR::OK;
     rct_string_id ErrorTitle = STR_NONE;
     rct_string_id ErrorMessage = STR_NONE;
-    std::array<uint8_t, 12> ErrorMessageArgs;
+    std::array<uint8_t, 32> ErrorMessageArgs;
     CoordsXYZ Position = { LOCATION_NULL, LOCATION_NULL, LOCATION_NULL };
     money32 Cost = 0;
     uint16_t ExpenditureType = 0;