diff --git a/distribution/lib/Standard/Base/0.2.32-SNAPSHOT/src/Data/Vector.enso b/distribution/lib/Standard/Base/0.2.32-SNAPSHOT/src/Data/Vector.enso
index 412dce0fb472..ef418d6d7d55 100644
--- a/distribution/lib/Standard/Base/0.2.32-SNAPSHOT/src/Data/Vector.enso
+++ b/distribution/lib/Standard/Base/0.2.32-SNAPSHOT/src/Data/Vector.enso
@@ -748,9 +748,9 @@ type Vector
         this.fold Map.empty state->
             item->
                 key = Mixed_Types_Map_Key (on item)
-                if (state.get_or_else key False) then state else
+                if (state.get_or_else key False) then existing else
                     builder.append item
-                    state.insert key True
+                    existing.insert key True
 
         builder.to_vector
 
diff --git a/test/Tests/src/Data/Vector_Spec.enso b/test/Tests/src/Data/Vector_Spec.enso
index a4faf6b1b977..b4574db39e05 100644
--- a/test/Tests/src/Data/Vector_Spec.enso
+++ b/test/Tests/src/Data/Vector_Spec.enso
@@ -257,9 +257,9 @@ spec = Test.group "Vectors" <|
         [1, 3, 1, 2, 2, 1].distinct . should_equal [1, 3, 2]
         ["a", "a", "a"].distinct . should_equal ["a"]
         [].distinct . should_equal []
-        [1, 1.0, 2, 2.0].distinct . should_equal [1, 2]
 
     Test.specify "should return a vector containing only unique mixed type elements" <|
+        [1, 1.0, 2, 2.0].distinct . should_equal [1, 2]
         ["a", 2].distinct . should_equal ["a", 2]
         [2, "a", Integer, "a", 2].distinct . should_equal [2, "a", Integer]