diff --git a/tka/sig_test.go b/tka/sig_test.go
index 04e9189a5..bc2279b3d 100644
--- a/tka/sig_test.go
+++ b/tka/sig_test.go
@@ -152,7 +152,7 @@ func TestSigNested_DeepNesting(t *testing.T) {
 
 	outer := nestedSig
 	var lastNodeKey key.NodePrivate
-	for range 15 { // 15 = max nesting level for CBOR
+	for range cborDecOpts.MaxNestedLevels - 1 {
 		lastNodeKey = key.NewNode()
 		nodeKeyPub, _ := lastNodeKey.Public().MarshalBinary()