diff --git a/index-source.txt b/index-source.txt
index 2d1d23f..7235edf 100644
--- a/index-source.txt
+++ b/index-source.txt
@@ -475,7 +475,7 @@ path: stylesheet-extra.include
 			may be present on a keyboard layout.
 
 			BEGIN_CODE_TABLE alphanumeric-writing-system "List of code values for writing system keys in the Alphanumeric section."
-				CODE Backquote		KEYCAP{`~} on a US keyboard. This is the KEYCAP{半角/全角/漢字}
+				CODE Backquote		KEYCAP{`~} on a US keyboard. This is also called a backtick or grave. This is the KEYCAP{半角/全角/漢字}
 									(PHONETIC{hankaku/zenkaku/kanji}) key on Japanese keyboards
 				CODE Backslash		Used for both the US KEYCAP{\|} (on the 101-key layout) and also for the key
 									located between the KEYCAP{"} and KEYCAP{Enter} keys on row C of the 102-,
diff --git a/index.html b/index.html
index e6b4da6..80403e2 100644
--- a/index.html
+++ b/index.html
@@ -767,7 +767,7 @@ <h4 class="heading settled" data-level="3.1.1" id="key-alphanumeric-writing-syst
      <tr>
       <td class="code-table-code"><code class="code" id="code-Backquote">"Backquote"</code>
       <td class="code-table-required">Yes
-      <td><code class="keycap">`~</code> on a US keyboard. This is the <code class="keycap">半角/全角/漢字</code> (<span class="unicode">hankaku/zenkaku/kanji</span>) key on Japanese keyboards 
+      <td><code class="keycap">`~</code> on a US keyboard. This is also called a backtick or grave. This is the <code class="keycap">半角/全角/漢字</code> (<span class="unicode">hankaku/zenkaku/kanji</span>) key on Japanese keyboards 
      <tr>
       <td class="code-table-code"><code class="code" id="code-Backslash">"Backslash"</code>
       <td class="code-table-required">Yes