diff --git a/Components/DiskII/IWM.cpp b/Components/DiskII/IWM.cpp
index 5e981d60e..94d194163 100644
--- a/Components/DiskII/IWM.cpp
+++ b/Components/DiskII/IWM.cpp
@@ -8,6 +8,7 @@
 
 #include "IWM.hpp"
 
+#define NDEBUG
 #define LOG_PREFIX "[IWM] "
 #include "../../Outputs/Log.hpp"