diff --git a/_metadata.adoc b/_metadata.adoc
index 20eb984..8247308 100644
--- a/_metadata.adoc
+++ b/_metadata.adoc
@@ -1,3 +1,9 @@
+// Use anchors of the form `#foo-bar`, i.e., replacing whitespace with "-",
+// instead of instead of AsciiDoc's default `#_snake_case` (replacing
+// whitespace with "_" and prefixing with "_").
+:idprefix:
+:idseparator: -
+
 [horizontal]
 RIP:: {rip}
 ifdef::discussion[Discussion:: {discussion}]