diff --git a/toolz/itertoolz.py b/toolz/itertoolz.py
index 354ecf25..00541639 100644
--- a/toolz/itertoolz.py
+++ b/toolz/itertoolz.py
@@ -522,10 +522,10 @@ def interpose(el, seq):
 
     >>> list(interpose("a", [1, 2, 3]))
     [1, 'a', 2, 'a', 3]
+    >>> list(interpose("a", []))
+    []
     """
-    inposed = concat(zip(itertools.repeat(el), seq))
-    next(inposed)
-    return inposed
+    return drop(1, concat(zip(itertools.repeat(el), seq)))
 
 
 def frequencies(seq):
diff --git a/toolz/tests/test_itertoolz.py b/toolz/tests/test_itertoolz.py
index c8640917..83f6dd5e 100644
--- a/toolz/tests/test_itertoolz.py
+++ b/toolz/tests/test_itertoolz.py
@@ -253,6 +253,8 @@ def test_interpose():
     assert "tXaXrXzXaXn" == "".join(interpose("X", "tarzan"))
     assert list(interpose(0, itertools.repeat(1, 4))) == [1, 0, 1, 0, 1, 0, 1]
     assert list(interpose('.', ['a', 'b', 'c'])) == ['a', '.', 'b', '.', 'c']
+    assert list(interpose("a", [])) == []
+    assert list(interpose("a", [1])) == [1]
 
 
 def test_frequencies():