diff --git a/cranelift/docs/regalloc.rst b/cranelift/docs/regalloc.rst
index 66ead056f8..da227586a1 100644
--- a/cranelift/docs/regalloc.rst
+++ b/cranelift/docs/regalloc.rst
@@ -1,6 +1,6 @@
-*******************************
+********************************
 Register Allocation in Cranelift
-*******************************
+********************************
 
 .. default-domain:: clif
 .. highlight:: clif