diff --git a/src/net/cgrand/xforms.cljc b/src/net/cgrand/xforms.cljc
index 0a54dd2..82135e0 100644
--- a/src/net/cgrand/xforms.cljc
+++ b/src/net/cgrand/xforms.cljc
@@ -557,7 +557,7 @@
       "Iterator transducing context, returns an iterator on the transformed data.
        Equivalent to (.iterator (eduction xform (iterator-seq src-iterator))) except there's is no buffering on values (as in iterator-seq),
        This buffering may cause problems when mutable objects are returned by the src-iterator."
-      [xform ^java.util.Iterator src-iterator]
+      ^java.util.Iterator [xform ^java.util.Iterator src-iterator]
       (let [NULL (Object.)
             dq (java.util.ArrayDeque. 32)
             rf (xform (fn ([acc] acc) ([acc x] (.push dq (if (some? x) x NULL)) acc)))
diff --git a/test/net/cgrand/xforms_test.cljc b/test/net/cgrand/xforms_test.cljc
index 54b62e9..5280cf3 100644
--- a/test/net/cgrand/xforms_test.cljc
+++ b/test/net/cgrand/xforms_test.cljc
@@ -1,5 +1,6 @@
 (ns net.cgrand.xforms-test
-  (:require [clojure.test :refer [is deftest testing]]
+  (:refer-clojure :exclude [partition reductions])
+  (:require [clojure.test :refer [are is deftest testing]]
             [net.cgrand.xforms :as x]))
 
 (defn trial
@@ -97,9 +98,9 @@
 #?(:bb nil ;; babashka doesn't currently support calling iterator on range type
    :clj
     (deftest iterator
-      (is (true? (.hasNext (x/iterator x/count (.iterator (range 5))))))
-      (is (is (= [5] (iterator-seq (x/iterator x/count (.iterator (range 5)))))))
-      (is (= [[0 1] [1 2] [2 3] [3 4] [4]] (iterator-seq (x/iterator (x/partition 2 1 nil) (.iterator (range 5)))))))
+      (is (true? (.hasNext (x/iterator x/count (.iterator ^java.lang.Iterable (range 5))))))
+      (is (is (= [5] (iterator-seq (x/iterator x/count (.iterator ^java.lang.Iterable (range 5)))))))
+      (is (= [[0 1] [1 2] [2 3] [3 4] [4]] (iterator-seq (x/iterator (x/partition 2 1 nil) (.iterator ^java.lang.Iterable (range 5)))))))
     
     (deftest window-by-time
       (is (= (into