diff --git a/chapter5.md b/chapter5.md
index 0fb6650..6239342 100644
--- a/chapter5.md
+++ b/chapter5.md
@@ -2,7 +2,7 @@
 =====================
 
 Our server is working, but being reliant on another server to actually perform
-the lookup is annoying and less than useful. Now is a good time to dwelve into
+the lookup is annoying and less than useful. Now is a good time to delve into
 the details of how a name is really resolved.
 
 Assuming that no information is known since before, the question is first