diff --git a/python/lsst/meas/algorithms/interp.py b/python/lsst/meas/algorithms/interp.py
index 5fcdbcf96..9f77a9741 100644
--- a/python/lsst/meas/algorithms/interp.py
+++ b/python/lsst/meas/algorithms/interp.py
@@ -9,9 +9,9 @@ def interpolateOverDefects(
     psf,
     badList,
     fallbackValue=0.0,
-    fwhm=1.0,
     useFallbackValueAtEdge=False,
-    useLegacyInterp=False,
+    fwhm=1.0,
+    useLegacyInterp=True,
     maskNameList=None,
     **kwargs
 ):