diff --git a/build.py b/build.py
index 81ffcd9..0c30abb 100755
--- a/build.py
+++ b/build.py
@@ -12,7 +12,7 @@ if __name__ == "__main__":
     gv = root / "index.gv"
     svg = out / "index.svg"
     make_directory(out)
-    run("dot", str(gv), "-Tsvg", "-o", str(svg))
+    run("dot", str(gv), "-Kcirco", "-Tsvg", "-o", str(svg))
     text = read_file_text(svg)
     write(
         out / "index.css",