diff --git a/src/Plots.jl b/src/Plots.jl
index 319a64a2..0f49b301 100644
--- a/src/Plots.jl
+++ b/src/Plots.jl
@@ -109,7 +109,7 @@ export
 import NaNMath
 # define functions (e.g. `_extrema`, that uses the NaNMath version (which ignores NaNs)) when the type is applicable
 for fun in (:extrema, :minimum, :maximum, :mean)
-       @eval $(Symbol(string("_",fun)))(x) = Base.$(fun)(x)
+       @eval $(Symbol(string("_",fun)))(x...) = Base.$(fun)(x...)
        @eval $(Symbol(string("_",fun))){F <: AbstractFloat}(x::AbstractVector{F}) = NaNMath.$(fun)(x)
 end