diff --git a/http2/server.go b/http2/server.go
index d219dc4c..e644d9b2 100644
--- a/http2/server.go
+++ b/http2/server.go
@@ -722,7 +722,7 @@ func (sc *serverConn) canonicalHeader(v string) string {
 	// maxCachedCanonicalHeaders is an arbitrarily-chosen limit on the number of
 	// entries in the canonHeader cache. This should be larger than the number
 	// of unique, uncommon header keys likely to be sent by the peer, while not
-	// so high as to permit unreaasonable memory usage if the peer sends an unbounded
+	// so high as to permit unreasonable memory usage if the peer sends an unbounded
 	// number of unique header keys.
 	const maxCachedCanonicalHeaders = 32
 	if len(sc.canonHeader) < maxCachedCanonicalHeaders {