diff --git a/src/ordered_set.jl b/src/ordered_set.jl
index 34609e9..230ede1 100644
--- a/src/ordered_set.jl
+++ b/src/ordered_set.jl
@@ -87,7 +87,11 @@ end
 function hash(s::OrderedSet, h::UInt)
     h = hash(orderedset_seed, h)
     s.dict.ndel > 0 && rehash!(s.dict)
-    hash(s.dict.keys, h)
+    h_2 = UInt(0)
+    for k in s.dict.keys
+        h_2 ⊻= hash(k, h)
+    end
+    h_2
 end
 
 # Deprecated functionality, see
diff --git a/test/test_ordered_set.jl b/test/test_ordered_set.jl
index d051a46..e76000e 100644
--- a/test/test_ordered_set.jl
+++ b/test/test_ordered_set.jl
@@ -21,7 +21,7 @@ using OrderedCollections, Test
         s1 = OrderedSet{String}(["bar", "foo"])
         s2 = OrderedSet{String}(["foo", "bar"])
         s3 = OrderedSet{String}(["baz"])
-        @test hash(s1) != hash(s2)
+        @test hash(s1) == hash(s2)
         @test hash(s1) != hash(s3)
     end