diff --git a/src/sorunlib/smurf.py b/src/sorunlib/smurf.py
index 9da693b..80f1257 100644
--- a/src/sorunlib/smurf.py
+++ b/src/sorunlib/smurf.py
@@ -93,12 +93,14 @@ def bias_step(tag=None, concurrent=True, settling_time=None):
             tag=tag)
 
 
-def iv_curve(tag=None, concurrent=True, settling_time=None):
+def iv_curve(tag=None, iv_kwargs=None, concurrent=True, settling_time=None):
     """Perform an iv curve on all SMuRF Controllers.
 
     Args:
         tag (str, optional): Tag or comma-separated listed of tags to attach to
             the operation.
+        iv_kwargs (dict, optional): Additional keyword arguments to pass to
+            ``take_iv``.
         concurrent (bool, optional): A bool which determines how the operation
             is run across the active SMuRF controllers. It runs in parallel if
             True, and in series if False.
@@ -112,7 +114,8 @@ def iv_curve(tag=None, concurrent=True, settling_time=None):
     _run_op('take_iv',
             concurrent=concurrent,
             settling_time=settling_time,
-            tag=tag)
+            tag=tag,
+            kwargs=iv_kwargs)
 
 
 def uxm_setup(concurrent=True, settling_time=0):
diff --git a/tests/test_smurf.py b/tests/test_smurf.py
index 19a6b93..23cef9e 100644
--- a/tests/test_smurf.py
+++ b/tests/test_smurf.py
@@ -36,7 +36,7 @@ def test_bias_step(concurrent):
 def test_iv_curve(concurrent):
     smurf.iv_curve(concurrent=concurrent)
     for client in smurf.run.CLIENTS['smurf']:
-        client.take_iv.start.assert_called_with(tag=None)
+        client.take_iv.start.assert_called_with(tag=None, kwargs=None)
 
 
 @patch('sorunlib.smurf.time.sleep', MagicMock())