diff --git a/src/scalarstats.jl b/src/scalarstats.jl
index 8723a528d3dd14..a4156b1a2616dd 100644
--- a/src/scalarstats.jl
+++ b/src/scalarstats.jl
@@ -179,7 +179,7 @@ function mad!{T<:Real}(v::AbstractArray{T}, center::Real)
     for i in 1:length(v)
         v[i] = abs(v[i]-center)
     end
-    1.4826 * median!(v, checknan=false)
+    1.4826 * median!(v)
 end
 
 mad!{T<:Real}(v::AbstractArray{T}) = mad!(v, median!(v))