diff --git a/artiq/test/test_coefficients.py b/artiq/test/test_coefficients.py
index 2f33ea8fd..138e0a86a 100644
--- a/artiq/test/test_coefficients.py
+++ b/artiq/test/test_coefficients.py
@@ -14,7 +14,7 @@ class TestSplineCoef(unittest.TestCase):
         self.s = coefficients.SplineSource(self.x, self.y, order=4)
 
     def test_get_segment(self):
-        return list(self.s.get_segment_data(start=1.5, stop=3.2, scale=.01))
+        return list(self.s.get_segment(start=1.5, stop=3.2, scale=.01))
 
     def test_synth(self):
         d = self.test_get_segment()
@@ -34,7 +34,7 @@ class TestSplineCoef(unittest.TestCase):
 
     def test_compare(self):
         scale = 100
-        d = list(self.s.get_segment_data(start=0, stop=4, scale=1/scale))
+        d = list(self.s.get_segment(start=0, stop=4, scale=1/scale))
         d[0]["trigger"] = True
         s = compute_samples.Synthesizer(self.y.shape[0], [d])
         s.select(0)
diff --git a/artiq/wavesynth/coefficients.py b/artiq/wavesynth/coefficients.py
index 3b5359d4e..313913667 100644
--- a/artiq/wavesynth/coefficients.py
+++ b/artiq/wavesynth/coefficients.py
@@ -120,9 +120,9 @@ class CoefficientSource:
             with `n` being the number of channels."""
         raise NotImplementedError
 
-    def get_segment_data(self, start, stop, scale, *, cutoff=1e-12,
-                         target="bias", variable="amplitude"):
-        """Build wavesynth segment data.
+    def get_segment(self, start, stop, scale, *, cutoff=1e-12,
+                    target="bias", variable="amplitude"):
+        """Build wavesynth segment.
 
         :param start: see `crop_x()`.
         :param stop: see `crop_x()`.
@@ -147,7 +147,7 @@ class CoefficientSource:
 
         See `get_segment()` for arguments.
         """
-        for i, line in enumerate(self.get_segment_data(*args, **kwargs)):
+        for line in self.get_segment(*args, **kwargs):
             segment.add_line(**line)