diff --git a/common/content/mappings.js b/common/content/mappings.js
index 4c644f66..142bb44b 100644
--- a/common/content/mappings.js
+++ b/common/content/mappings.js
@@ -592,7 +592,7 @@ var Mappings = Module("mappings", {
                                     ({ helpTag: prefix + map.name, __proto__: map }
                                      for (map in self.iterate(args))),
                     description: "List all " + mode.name + " mode mappings along with their short descriptions",
-                    index: mode.char + "-maps",
+                    index: mode.char + "-map",
                     getMode: function (args) mode,
                     options: []
                 });
diff --git a/common/locale/en-US/index.xml b/common/locale/en-US/index.xml
index 899980ca..4d1f7ff6 100644
--- a/common/locale/en-US/index.xml
+++ b/common/locale/en-US/index.xml
@@ -14,13 +14,13 @@
 
 This file contains a list of all available commands, mappings and options.
 
-<h2 tag="i-maps-index">Insert mode</h2>
+<h2 tag="i-map-index">Insert mode</h2>
 
-<h2 tag="n-maps-index">Normal mode</h2>
+<h2 tag="n-map-index">Normal mode</h2>
 
-<h2 tag="v-maps-index">Visual mode</h2>
+<h2 tag="v-map-index">Visual mode</h2>
 
-<h2 tag="c-maps-index">Command-line editing</h2>
+<h2 tag="c-map-index">Command-line editing</h2>
 
 <h2 tag="t-map-index">Text editing</h2>