diff --git a/MissionEditor/TeamTypes.cpp b/MissionEditor/TeamTypes.cpp
index 92f7349..604b3b8 100644
--- a/MissionEditor/TeamTypes.cpp
+++ b/MissionEditor/TeamTypes.cpp
@@ -800,6 +800,9 @@ void CTeamTypes::OnEditchangeWaypoint()
 	TruncSpace(str);
 	auto sec = ini.TryGetSection(str);
 	ASSERT(sec != nullptr);
+	if (sec == nullptr) {
+		return;
+	}
 
 	if (strlen(m_Waypoint) == 0) {
 		sec->SetString("Waypoint", "");