diff --git a/csidh/ref/csidh b/csidh/ref/csidh
deleted file mode 160000
index 7d60c84..0000000
--- a/csidh/ref/csidh
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 7d60c846d3fa5298451b93dbb1ad6080b7a2bcec