diff --git a/launcher/minecraft/MinecraftInstance.cpp b/launcher/minecraft/MinecraftInstance.cpp
index 3e495249..503b34d9 100644
--- a/launcher/minecraft/MinecraftInstance.cpp
+++ b/launcher/minecraft/MinecraftInstance.cpp
@@ -213,7 +213,7 @@ QString MinecraftInstance::binRoot() const
 
 QString MinecraftInstance::getNativePath() const
 {
-#if defined(Os_FreeBSD)
+#ifdef Q_OS_FREEBSD
     QDir natives_dir("/usr/local/lib/lwjgl/");
 #else
     QDir natives_dir(FS::PathCombine(instanceRoot(), "natives/"));