diff --git a/4chan_x.coffee b/4chan_x.coffee
index f4bfce5ad..40b91ec34 100644
--- a/4chan_x.coffee
+++ b/4chan_x.coffee
@@ -406,7 +406,7 @@ keyAct = (e) ->
             location.pathname = "/#{g.BOARD}/#{temp}#1"
         when "J"
             temp = position + count
-            if temp > 10 then temp = 10
+            if temp > 9 then temp = 9
             location.hash = 'p' + temp
         when "K"
             temp = position - count
diff --git a/4chan_x.js b/4chan_x.js
index 462dfb53a..533cbf5a3 100644
--- a/4chan_x.js
+++ b/4chan_x.js
@@ -503,8 +503,8 @@
         break;
       case "J":
         temp = position + count;
-        if (temp > 10) {
-          temp = 10;
+        if (temp > 9) {
+          temp = 9;
         }
         location.hash = 'p' + temp;
         break;