diff --git a/src/src/Rendering/Measure/EllipseAnnotationActor.cpp b/src/src/Rendering/Measure/EllipseAnnotationActor.cpp
index 0630b38..4489805 100644
--- a/src/src/Rendering/Measure/EllipseAnnotationActor.cpp
+++ b/src/src/Rendering/Measure/EllipseAnnotationActor.cpp
@@ -22,7 +22,7 @@
 vtkStandardNewMacro(EllipseAnnotationActor)
 
 namespace {
-    const int GRANULARITY = 30;
+    const int GRANULARITY = 60;
 }
 
 void EllipseAnnotationActor::BuildShape() {