diff --git a/fortune_generator/js/fortune.js b/fortune_generator/js/fortune.js
index 5d10b3e..1532d59 100644
--- a/fortune_generator/js/fortune.js
+++ b/fortune_generator/js/fortune.js
@@ -353,9 +353,11 @@ async function init_page() {
       }
     }
 
-    special_events_index = ip.split(".").map(num => parseInt(num)).reduce((acc, cur) => acc + cur);
-    special_events_index %= current_day_special_events.length;
-    special_events_index = current_day_special_events[special_events_index];
+    if (current_day_special_events.length) {
+      special_events_index = ip.split(".").map(num => parseInt(num)).reduce((acc, cur) => acc + cur);
+      special_events_index %= current_day_special_events.length;
+      special_events_index = current_day_special_events[special_events_index];
+    }
 
     // if there is upcoming event then show
     for (let eventIndex = 0; eventIndex < showSpecialEventCount; eventIndex++) {
diff --git a/fortune_generator/json/commit_hash.json b/fortune_generator/json/commit_hash.json
index 7ac6cce..f34e86d 100644
--- a/fortune_generator/json/commit_hash.json
+++ b/fortune_generator/json/commit_hash.json
@@ -1 +1 @@
-{ "commit_hash": "f9f0f9c1a4c6bd2207ff884a63c6fd2fbda04f33" }
+{ "commit_hash": "c80c879af161deeeb817344db45f789ef2d8a9a0" }