diff --git a/github-dark.css b/github-dark.css
index 501c84077..8bd58d28e 100644
--- a/github-dark.css
+++ b/github-dark.css
@@ -1217,6 +1217,10 @@
   kbd, body[class="page-responsive"] kbd {
     box-shadow: inset 0 -2px 0 #343434;
   }
+  /* auto-generated rule for "box-shadow: inset 0 -1px 0 #959da5" */
+  .markdown-body kbd {
+    box-shadow: inset 0 -2px 0 #343434;
+  }
   /* auto-generated rule for "box-shadow: 0 1px 0 0 #0058a2" */
   html[prefix] .link-mono:hover {
     box-shadow: 0 1px 0 0 /*[[base-color]]*/ #4f8cc9;
diff --git a/tools/generate.js b/tools/generate.js
index 9d9f1af12..9dea8cb6c 100755
--- a/tools/generate.js
+++ b/tools/generate.js
@@ -100,7 +100,9 @@ let mappings = {
   "box-shadow: inset 0 0 0 1px #e1e4e8,0 2px 4px rgba(0,0,0,.15)": "box-shadow: inset 0 0 0 1px #555",
   "box-shadow: inset 0 0 0 1px #e1e4e8": "box-shadow: inset 0 0 0 1px #555",
   "box-shadow: inset 0 1px 0 0 #e1e4e8": "box-shadow: inset 0 1px 0 0 #555",
+
   "box-shadow: inset 0 -1px 0 #c6cbd1": "box-shadow: inset 0 -2px 0 #343434",
+  "box-shadow: inset 0 -1px 0 #959da5": "box-shadow: inset 0 -2px 0 #343434",
 
   "box-shadow: 0 1px 0 0 #0058a2": "box-shadow: 0 1px 0 0 /*[[base-color]]*/ #4f8cc9",