diff --git a/web/static/js/main.js b/web/static/js/main.js
index 720eb89..b920860 100644
--- a/web/static/js/main.js
+++ b/web/static/js/main.js
@@ -238,13 +238,17 @@ async function serialize_reminder(node, mode) {
             utc_time = utc_time.toFormat("yyyy-LL-dd'T'HH:mm:ss");
         }
 
-        expiration_time = luxon.DateTime.fromISO(
-            node.querySelector('input[name="time"]').value
-        ).setZone("UTC");
-        if (expiration_time.invalid) {
-            return { error: "Expiration provided invalid." };
-        } else {
-            expiration_time = expiration_time.toFormat("yyyy-LL-dd'T'HH:mm:ss");
+        let expiration = node.querySelector('input[name="expiration"]').value;
+
+        if (expiration) {
+            expiration_time = luxon.DateTime.fromISO(
+                node.querySelector('input[name="expiration"]').value
+            ).setZone("UTC");
+            if (expiration_time.invalid) {
+                return { error: "Expiration provided invalid." };
+            } else {
+                expiration_time = expiration_time.toFormat("yyyy-LL-dd'T'HH:mm:ss");
+            }
         }
     }
 
@@ -429,7 +433,7 @@ function deserialize_reminder(reminder, frame, mode) {
         timeInput.value = localTime.toFormat("yyyy-LL-dd'T'HH:mm:ss");
 
         if (reminder["expires"]) {
-            let expiresInput = frame.querySelector('input[name="time"]');
+            let expiresInput = frame.querySelector('input[name="expiration"]');
             let expiresTime = luxon.DateTime.fromISO(reminder["expires"], {
                 zone: "UTC",
             }).setZone(timezone);