diff --git a/source/Rbm.hpp b/source/Rbm.hpp
index f0c7386..b9c3ebf 100644
--- a/source/Rbm.hpp
+++ b/source/Rbm.hpp
@@ -28,7 +28,7 @@ public:
 		Params()
 		: learningRate(0.1)
 		, weightDecay(0.0)
-		, momentum(0.5)
+		, momentum(0.9)
 		, doGaussianHidden(false)
 		, doGaussianVisible(false)
 		, doRaoBlackwell(true)