diff --git a/src/openrct2/entity/Peep.cpp b/src/openrct2/entity/Peep.cpp
index 985a68e87b..c3e5e7c8c4 100644
--- a/src/openrct2/entity/Peep.cpp
+++ b/src/openrct2/entity/Peep.cpp
@@ -497,6 +497,9 @@ std::optional<CoordsXY> Peep::UpdateWalkingAction(const CoordsXY& differenceLoc,
 void Peep::ThrowUp()
 {
     auto* guest = As<Guest>();
+    if (guest == nullptr)
+        return;
+
     guest->Hunger /= 2;
     guest->NauseaTarget /= 2;