diff --git a/masque/shapes/path.py b/masque/shapes/path.py
index 43cff34..b4ac650 100644
--- a/masque/shapes/path.py
+++ b/masque/shapes/path.py
@@ -500,13 +500,13 @@ class Path(Shape):
         return self
 
     def _calculate_cap_extensions(self) -> NDArray[numpy.float64]:
-        if self.cap in (PathCap.Square, PathCap.Circle):
+        if self.cap == PathCap.Square:
             extensions = numpy.full(2, self.width / 2)
         elif self.cap == PathCap.SquareCustom:
             assert isinstance(self.cap_extensions, numpy.ndarray)
             extensions = self.cap_extensions
         else:
-            # Flush
+            # Flush or Circle
             extensions = numpy.zeros(2)
         return extensions