diff --git a/src/layers/normalise.jl b/src/layers/normalise.jl
index 2323b731..b81226f6 100644
--- a/src/layers/normalise.jl
+++ b/src/layers/normalise.jl
@@ -56,7 +56,7 @@ end
 
 function AlphaDropout(p)
   @assert 0 ≤ p ≤ 1
-  AlphaDropout{typeof(p)}(p,true)
+  AlphaDropout(p,true)
 end
 
 function (a::AlphaDropout)(x)