diff --git a/web/viewer.js b/web/viewer.js
index 3404c6e42..24c3458d7 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -914,11 +914,13 @@ window.addEventListener('keydown', function keydown(evt) {
       break;
     case 37: // left arrow
     case 75: // 'k'
+    case 80: // 'p'
       PDFView.page--;
       handle = true;
       break;
     case 39: // right arrow
     case 74: // 'j'
+    case 78: // 'n'
       PDFView.page++;
       handle = true;
       break;