diff --git a/Project.toml b/Project.toml
index 9ef842f..138cabd 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,13 +1,15 @@
 name = "IntervalSets"
 uuid = "8197267c-284f-5f27-9208-e0e47529a953"
-version = "0.3.2"
+version = "0.4.0"
 
 [deps]
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
+EllipsisNotation = "da5c29d0-fa7d-589e-88eb-ea29b0a81949"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
 julia = "0.7, 1"
+EllipsisNotation = "0.4"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
diff --git a/src/IntervalSets.jl b/src/IntervalSets.jl
index 03734b5..0bfcfd0 100644
--- a/src/IntervalSets.jl
+++ b/src/IntervalSets.jl
@@ -9,6 +9,9 @@ import Statistics: mean
 
 using Dates
 
+using EllipsisNotation
+import EllipsisNotation: Ellipsis
+
 export AbstractInterval, Interval, OpenInterval, ClosedInterval,
             ⊇, .., ±, ordered, width, duration, leftendpoint, rightendpoint, endpoints,
             isclosed, isleftclosed, isrightclosed, isleftopen, isrightopen, closedendpoints,
@@ -181,7 +184,7 @@ isrightclosed(d::TypedEndpointsInterval{L,:open}) where {L} = false
 # The third is the one we want, but the first two are needed to resolve ambiguities
 Base.Slice{T}(i::TypedEndpointsInterval{:closed,:closed,I}) where {T<:AbstractUnitRange,I<:Integer} =
     Base.Slice{T}(minimum(i):maximum(i))
-Base.Slice(i::TypedEndpointsInterval{:closed,:closed,I}) where I<:Integer = 
+Base.Slice(i::TypedEndpointsInterval{:closed,:closed,I}) where I<:Integer =
     Base.Slice(minimum(i):maximum(i))
 function Base.OneTo{T}(i::TypedEndpointsInterval{:closed,:closed,I}) where {T<:Integer,I<:Integer}
     @noinline throwstart(i) = throw(ArgumentError("smallest element must be 1, got $(minimum(i))"))
diff --git a/src/interval.jl b/src/interval.jl
index f97ad7d..9ba0f7e 100644
--- a/src/interval.jl
+++ b/src/interval.jl
@@ -81,8 +81,13 @@ convert(::Type{TypedEndpointsInterval{L,R}}, d::Interval{L,R}) where {L,R} = d
     iv = l..r
 
 Construct a ClosedInterval `iv` spanning the region from `l` to `r`.
+
+(The symbol `..` is the same as in the package EllipsisNotation.jl.)
 """
-..(x, y) = ClosedInterval(x, y)
+..
+
+(::Ellipsis)(x, y) = ClosedInterval(x, y)
+
 
 """
     iv = center±halfwidth
diff --git a/test/runtests.jl b/test/runtests.jl
index a5412df..5b1793c 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -21,7 +21,11 @@ closedendpoints(I::MyUnitInterval) = (I.isleftclosed,I.isrightclosed)
 struct IncompleteInterval <: AbstractInterval{Int} end
 
 @testset "IntervalSets" begin
-    @test isempty(detect_ambiguities(IntervalSets, Base, Core))
+    if VERSION >= v"1.1"
+        # Julia 1.0 defines getindex(a::GenericArray, i...) in Test, 
+        # which could cause an ambiguity with getindex(A::AbstractArray, ::EllipsisNotation.Ellipsis)
+        @test isempty(detect_ambiguities(IntervalSets, Base, Core))
+    end
 
     @test ordered(2, 1) == (1, 2)
     @test ordered(1, 2) == (1, 2)