diff --git a/Components/DiskII/IWM.cpp b/Components/DiskII/IWM.cpp
index 0605095e1..e8a2d044a 100644
--- a/Components/DiskII/IWM.cpp
+++ b/Components/DiskII/IWM.cpp
@@ -8,6 +8,7 @@
 
 #include "IWM.hpp"
 
+#define NDEBUG
 #include "../../Outputs/Log.hpp"
 
 using namespace Apple;