diff --git a/Source/Rbm.hpp b/Source/Rbm.hpp
index 056e769..757a14c 100644
--- a/Source/Rbm.hpp
+++ b/Source/Rbm.hpp
@@ -20,7 +20,7 @@ public:
 	struct Params
 	{
 		Params()
-		: m_weightDecay(0.01)
+		: m_weightDecay(0.0)
 		, m_learningRate(0.1)
 		, m_momentum(0.5)
 		, m_doRaoBlackwell(true)