diff --git a/masque/utils/curves.py b/masque/utils/curves.py
index 3a7671b..0a6c9bd 100644
--- a/masque/utils/curves.py
+++ b/masque/utils/curves.py
@@ -117,6 +117,6 @@ def euler_bend(
     xy = numpy.concatenate(xy_parts)
 
     # Remove any 2x-duplicate points
-    xy = xy[(numpy.roll(xy, 1, axis=0) != xy).any(axis=1)]
+    xy = xy[(numpy.roll(xy, 1, axis=0) - xy  > 1e-12).any(axis=1)]
 
     return xy