diff --git a/src/engine/sysDef.cpp b/src/engine/sysDef.cpp
index b9c37d890..d4a58dcad 100644
--- a/src/engine/sysDef.cpp
+++ b/src/engine/sysDef.cpp
@@ -1,4 +1,4 @@
-'/**
+/**
  * Furnace Tracker - multi-system chiptune tracker
  * Copyright (C) 2021-2023 tildearrow and contributors
  *