diff --git a/src/room.rs b/src/room.rs
index 0d6b870..3c2d74a 100644
--- a/src/room.rs
+++ b/src/room.rs
@@ -208,7 +208,7 @@ impl Room {
         if self.subject.is_none() {
             let subject = String::from("");
             let setter = occupant;
-            let stamp = DateTime(Utc::now().with_timezone(&FixedOffset::east(0)));
+            let stamp = DateTime(Utc::now().with_timezone(&FixedOffset::east_opt(0).unwrap()));
             self.subject = Some((subject, setter, stamp));
         }