diff --git a/build/update-license.go b/build/update-license.go
index 58e8b16045..f548a5995b 100644
--- a/build/update-license.go
+++ b/build/update-license.go
@@ -291,8 +291,8 @@ func writeAuthors(files []string) {
 		}
 	}
 	// Write sorted list of authors back to the file.
-	slices.SortFunc(list, func(a, b string) bool {
-		return strings.ToLower(a) < strings.ToLower(b)
+	slices.SortFunc(list, func(a, b string) int {
+		return strings.Compare(strings.ToLower(a), strings.ToLower(b))
 	})
 	content := new(bytes.Buffer)
 	content.WriteString(authorsFileHeader)
diff --git a/p2p/discover/v4_udp_test.go b/p2p/discover/v4_udp_test.go
index 27606e815b..8f0b10b10b 100644
--- a/p2p/discover/v4_udp_test.go
+++ b/p2p/discover/v4_udp_test.go
@@ -282,12 +282,12 @@ func TestUDPv4_findnode(t *testing.T) {
 	waitNeighbors := func(want []*node) {
 		test.waitPacketOut(func(p *v4wire.Neighbors, to *net.UDPAddr, hash []byte) {
 			if len(p.Nodes) != len(want) {
-				t.Errorf("wrong number of results: got %d, want %d", len(p.Nodes), bucketSize)
+				t.Errorf("wrong number of results: got %d, want %d", len(p.Nodes), len(want))
 				return
 			}
 			for i, n := range p.Nodes {
 				if n.ID.ID() != want[i].ID() {
-					t.Errorf("result mismatch at %d:\n  got:  %v\n  want: %v", i, n, expected.entries[i])
+					t.Errorf("result mismatch at %d:\n  got: %v\n  want: %v", i, n, expected.entries[i])
 				}
 				if !live[n.ID.ID()] {
 					t.Errorf("result includes dead Node %v", n.ID.ID())