diff --git a/keys.js b/keys.js
index 67e8fb0..c284024 100644
--- a/keys.js
+++ b/keys.js
@@ -46,6 +46,18 @@ const maps = {
       category:    categories.scroll,
       description: "Scroll down",
     },
+    {
+      alias:       "K",
+      map:         "e",
+      category:    categories.scroll,
+      description: "Scroll half page up",
+    },
+    {
+      alias:       "J",
+      map:         "d",
+      category:    categories.scroll,
+      description: "Scroll half page down",
+    },
     {
       alias:       "gi",
       category:    categories.pageNav,