diff --git a/ch03.asciidoc b/ch03.asciidoc
index 8cd6227..3c8fd06 100644
--- a/ch03.asciidoc
+++ b/ch03.asciidoc
@@ -372,7 +372,7 @@ These messages will only be forwarded about four times a day for every channel t
 The gossip protocol also comes with a variety of queries and tools to initially synchronize a node with the view of the network or to update the node's view after being offline for a while.
 We will investigate the details of the gossip protocol in a later chapter.
 For now it is only important to know that it exists and that it is used to share topology information of the Lightning Network with its participants.
-This topology information is crucually needed for delivering payments through the network of payment channels.
+This topology information is crucially needed for delivering payments through the network of payment channels.
 
 [NOTE]
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