diff --git a/pkg/yqlib/doc/operators/group-by.md b/pkg/yqlib/doc/operators/group-by.md
index 6fe9985b..cd5cc8c4 100644
--- a/pkg/yqlib/doc/operators/group-by.md
+++ b/pkg/yqlib/doc/operators/group-by.md
@@ -13,9 +13,9 @@ yq 'group_by(.foo)' sample.yml
 ```
 will output
 ```yaml
-- - [{foo: 1, bar: 10}, {foo: 3, bar: 100}, {foo: 1, bar: 1}]
-  - [{foo: 1, bar: 10}, {foo: 3, bar: 100}, {foo: 1, bar: 1}]
-- - [{foo: 1, bar: 10}, {foo: 3, bar: 100}, {foo: 1, bar: 1}]
+- - {foo: 1, bar: 10}
+  - {foo: 1, bar: 1}
+- - {foo: 3, bar: 100}
 ```
 
 ## Group by field, with nuls
@@ -29,10 +29,10 @@ yq 'group_by(.foo)' sample.yml
 ```
 will output
 ```yaml
-- - [{cat: dog}, {foo: 1, bar: 10}, {foo: 3, bar: 100}, {no: foo for you}, {foo: 1, bar: 1}]
-  - [{cat: dog}, {foo: 1, bar: 10}, {foo: 3, bar: 100}, {no: foo for you}, {foo: 1, bar: 1}]
-- - [{cat: dog}, {foo: 1, bar: 10}, {foo: 3, bar: 100}, {no: foo for you}, {foo: 1, bar: 1}]
-  - [{cat: dog}, {foo: 1, bar: 10}, {foo: 3, bar: 100}, {no: foo for you}, {foo: 1, bar: 1}]
-- - [{cat: dog}, {foo: 1, bar: 10}, {foo: 3, bar: 100}, {no: foo for you}, {foo: 1, bar: 1}]
+- - {cat: dog}
+  - {no: foo for you}
+- - {foo: 1, bar: 10}
+  - {foo: 1, bar: 1}
+- - {foo: 3, bar: 100}
 ```
 
diff --git a/pkg/yqlib/operator_group_by.go b/pkg/yqlib/operator_group_by.go
index bfd9d7c9..e0d3bb45 100644
--- a/pkg/yqlib/operator_group_by.go
+++ b/pkg/yqlib/operator_group_by.go
@@ -30,7 +30,7 @@ func processIntoGroups(d *dataTreeNavigator, context Context, rhsExp *Expression
 			groupList = list.New()
 			newMatches.Set(keyValue, groupList)
 		}
-		groupList.(*list.List).PushBack(node)
+		groupList.(*list.List).PushBack(child)
 	}
 	return newMatches, nil
 }
diff --git a/pkg/yqlib/operator_group_by_test.go b/pkg/yqlib/operator_group_by_test.go
index 2b086c02..2c7803da 100644
--- a/pkg/yqlib/operator_group_by_test.go
+++ b/pkg/yqlib/operator_group_by_test.go
@@ -13,19 +13,19 @@ var groupByOperatorScenarios = []expressionScenario{
 			"D0, P[], (!!seq)::- - {foo: 1, bar: 10}\n  - {foo: 1, bar: 1}\n- - {foo: 3, bar: 100}\n",
 		},
 	},
-	// {
-	// 	description: "Group by field, with nuls",
-	// 	document:    `[{cat: dog}, {foo: 1, bar: 10}, {foo: 3, bar: 100}, {no: foo for you}, {foo: 1, bar: 1}]`,
-	// 	expression:  `group_by(.foo)`,
-	// 	expected: []string{
-	// 		"D0, P[], (!!seq)::- - {cat: dog}\n  - {no: foo for you}\n- - {foo: 1, bar: 10}\n  - {foo: 1, bar: 1}\n- - {foo: 3, bar: 100}\n",
-	// 	},
-	// },
+	{
+		description: "Group by field, with nuls",
+		document:    `[{cat: dog}, {foo: 1, bar: 10}, {foo: 3, bar: 100}, {no: foo for you}, {foo: 1, bar: 1}]`,
+		expression:  `group_by(.foo)`,
+		expected: []string{
+			"D0, P[], (!!seq)::- - {cat: dog}\n  - {no: foo for you}\n- - {foo: 1, bar: 10}\n  - {foo: 1, bar: 1}\n- - {foo: 3, bar: 100}\n",
+		},
+	},
 }
 
 func TestGroupByOperatorScenarios(t *testing.T) {
 	for _, tt := range groupByOperatorScenarios {
 		testScenario(t, &tt)
 	}
-	// documentOperatorScenarios(t, "group-by", groupByOperatorScenarios)
+	documentOperatorScenarios(t, "group-by", groupByOperatorScenarios)
 }