diff --git a/doc/designs/quic-design/server/quic-polling.md b/doc/designs/quic-design/server/quic-polling.md
index 30eca9ad5a62b..a7757001a3c7c 100644
--- a/doc/designs/quic-design/server/quic-polling.md
+++ b/doc/designs/quic-design/server/quic-polling.md
@@ -125,7 +125,7 @@ contain a large number of design issues:
 
 - There are separate `EPOLL_CTL_ADD` and `EPOLL_CTL_MOD` calls which are needed
   to add a new FD registration and modify an existing FD registration, when
-  most of the time what is desired is an “upsert” (update or inser) call. Thus
+  most of the time what is desired is an “upsert” (update or insert) call. Thus
   callers have to track whether an FD has already been added or not.
 
 - Only one FD can be registered, modified, or unregistered per syscall, rather