diff --git a/src/_radial-grid.scss b/src/_radial-grid.scss
index 1513166..222c4e9 100644
--- a/src/_radial-grid.scss
+++ b/src/_radial-grid.scss
@@ -134,7 +134,7 @@
     border: var(--tickness) solid var(--color);
     border-left: none;
     background-color: transparent;
-    border-radius: 0% 100% 100% 0% / 100% 50% 50% 0%;
+    border-radius: 0% 100% 100% 0% / 100% 51% 51% 0%;
     box-sizing: border-box;
     clip-path: polygon(
       0 50%,