diff --git a/mercurial/help/config.txt b/mercurial/help/config.txt
--- a/mercurial/help/config.txt
+++ b/mercurial/help/config.txt
@@ -870,6 +870,7 @@
     Repositories with this on-disk format require Mercurial version 4.7
 
     Enabled by default.
+
 ``revlog-compression``
     Compression algorithm used by revlog. Supported value are `zlib` and `zstd`.
     The `zlib` engine is the historical default of Mercurial. `zstd` is a newer
diff --git a/tests/test-help.t b/tests/test-help.t
--- a/tests/test-help.t
+++ b/tests/test-help.t
@@ -1511,6 +1511,8 @@
   
       "sparse-revlog"
   
+      "revlog-compression"
+  
       "profiling"
       -----------