diff --git a/book/src/design/circuit/gadgets/sinsemilla/commit-ivk.md b/book/src/design/circuit/gadgets/sinsemilla/commit-ivk.md
index 54c8e34d..3e425194 100644
--- a/book/src/design/circuit/gadgets/sinsemilla/commit-ivk.md
+++ b/book/src/design/circuit/gadgets/sinsemilla/commit-ivk.md
@@ -1,4 +1,4 @@
-# CommitIvk
+# $\CommitIvk$
 
 ## Message decomposition