diff --git a/internal/chart/v3/lint/rules/valuekeys.go b/internal/chart/v3/lint/rules/valuekeys.go
index 04c2e2d5c..ecb70d54e 100644
--- a/internal/chart/v3/lint/rules/valuekeys.go
+++ b/internal/chart/v3/lint/rules/valuekeys.go
@@ -83,6 +83,8 @@ func walkKeys(n *yaml.Node, path string, found *[]booleanLikeKey) {
 		for i, c := range n.Content {
 			walkKeys(c, fmt.Sprintf("%s[%d]", path, i), found)
 		}
+	default:
+		// Scalar, alias and document nodes carry no mapping keys to check.
 	}
 }
 
diff --git a/pkg/chart/v2/lint/rules/valuekeys.go b/pkg/chart/v2/lint/rules/valuekeys.go
index 04c2e2d5c..ecb70d54e 100644
--- a/pkg/chart/v2/lint/rules/valuekeys.go
+++ b/pkg/chart/v2/lint/rules/valuekeys.go
@@ -83,6 +83,8 @@ func walkKeys(n *yaml.Node, path string, found *[]booleanLikeKey) {
 		for i, c := range n.Content {
 			walkKeys(c, fmt.Sprintf("%s[%d]", path, i), found)
 		}
+	default:
+		// Scalar, alias and document nodes carry no mapping keys to check.
 	}
 }