diff --git a/functions/core/truthy.go b/functions/core/truthy.go
index 1633d645..d5e3dfef 100644
--- a/functions/core/truthy.go
+++ b/functions/core/truthy.go
@@ -60,24 +60,25 @@ func (t *Truthy) RunRule(nodes []*yaml.Node, context model.RuleFunctionContext)
 			}
 
 			if !utils.IsNodeMap(fieldNode) && !utils.IsNodeArray(fieldNodeValue) && !utils.IsNodeMap(fieldNodeValue) {
-				origin := context.Index.FindNodeOrigin(node)
-				if origin.Line > 1 {
-					nm := context.Index.GetNodeMap()
-					var keys []int
-					for k := range nm {
-						keys = append(keys, k)
-					}
-
-					// Sort the keys slice.
-					sort.Ints(keys)
-
-					np := nm[origin.Line-1][keys[0]]
-
-					if np != nil {
-						node = np
+				if context.Index != nil {
+					origin := context.Index.FindNodeOrigin(node)
+					if origin != nil && origin.Line > 1 {
+						nm := context.Index.GetNodeMap()
+						var keys []int
+						for k := range nm {
+							keys = append(keys, k)
+						}
+
+						// Sort the keys slice.
+						sort.Ints(keys)
+
+						np := nm[origin.Line-1][keys[0]]
+
+						if np != nil {
+							node = np
+						}
 					}
 				}
-
 				results = append(results, model.RuleFunctionResult{
 					Message: vacuumUtils.SuppliedOrDefault(message,
 						fmt.Sprintf("%s: `%s` must be set", ruleMessage, context.RuleAction.Field)),
diff --git a/motor/rule_applicator_test.go b/motor/rule_applicator_test.go
index 92cd2819..67f6b3d1 100644
--- a/motor/rule_applicator_test.go
+++ b/motor/rule_applicator_test.go
@@ -646,7 +646,8 @@ func TestApplyRules_Length_Description_BadConfig(t *testing.T) {
 	}
 	results := ApplyRulesToRuleSet(rse)
 	assert.Len(t, results.Errors, 0)
-	assert.Len(t, results.Results, 0)
+	assert.Len(t, results.Results, 1)
+	assert.Equal(t, "'length' needs 'min' or 'max' (or both) properties being set to operate: minimum property number not met (1)", results.Results[0].Message)
 
 }
 
@@ -2058,7 +2059,7 @@ custom:
 
 	assert.Len(t, results.Results, 1)
 	assert.Equal(t, "name 'hello' and id '1234' are not 'some_name' or 'some_id'", results.Results[0].Message)
-	assert.Equal(t, "my-custom-js-rule", results.Results[0].RuleId)
+	assert.Equal(t, "my-custom-js-rule", results.Results[0].Rule.Id)
 	assert.Equal(t, 3, results.Results[0].Range.Start.Line)
 }
 
@@ -2104,7 +2105,7 @@ notCustom: true"
 
 	assert.Len(t, results.Results, 2)
 	assert.Equal(t, "core me up: `custom` must be set", results.Results[0].Message)
-	assert.Equal(t, "my-custom-js-rule", results.Results[0].RuleId)
+	assert.Equal(t, "my-custom-js-rule", results.Results[0].Rule.Id)
 	assert.Equal(t, "this is a message, added after truthy was called", results.Results[1].Message)
 	assert.Equal(t, 2, results.Results[0].Range.Start.Line)
 }
@@ -2202,7 +2203,7 @@ notCustom: true"
 
 	assert.Len(t, results.Results, 1)
 	assert.Equal(t, "someOption is set to someValue", results.Results[0].Message)
-	assert.Equal(t, "my-custom-js-rule", results.Results[0].RuleId)
+	assert.Equal(t, "my-custom-js-rule", results.Results[0].Rule.Id)
 	assert.Equal(t, 2, results.Results[0].Range.Start.Line)
 }