diff --git a/app/store/engine/engine_test.go b/app/store/engine/engine_test.go
index 6b73f3ed..d9eea6c9 100644
--- a/app/store/engine/engine_test.go
+++ b/app/store/engine/engine_test.go
@@ -14,25 +14,30 @@ func TestEngine_sortComments(t *testing.T) {
 		{ID: "1", Score: 5, Timestamp: time.Date(2018, 2, 5, 10, 1, 0, 0, time.Local)},
 		{ID: "2", Score: 4, Timestamp: time.Date(2018, 2, 5, 10, 2, 0, 0, time.Local)},
 		{ID: "3", Score: 6, Timestamp: time.Date(2018, 2, 5, 10, 3, 0, 0, time.Local)},
+		{ID: "4", Score: 6, Timestamp: time.Date(2018, 2, 5, 10, 4, 0, 0, time.Local)},
 	}
 
 	sortComments(cc, "+time")
 	assert.Equal(t, "1", cc[0].ID)
 	assert.Equal(t, "2", cc[1].ID)
 	assert.Equal(t, "3", cc[2].ID)
+	assert.Equal(t, "4", cc[3].ID)
 
 	sortComments(cc, "-time")
-	assert.Equal(t, "3", cc[0].ID)
-	assert.Equal(t, "2", cc[1].ID)
-	assert.Equal(t, "1", cc[2].ID)
+	assert.Equal(t, "4", cc[0].ID)
+	assert.Equal(t, "3", cc[1].ID)
+	assert.Equal(t, "2", cc[2].ID)
+	assert.Equal(t, "1", cc[3].ID)
 
 	sortComments(cc, "score")
 	assert.Equal(t, "2", cc[0].ID)
 	assert.Equal(t, "1", cc[1].ID)
 	assert.Equal(t, "3", cc[2].ID)
+	assert.Equal(t, "4", cc[3].ID)
 
 	sortComments(cc, "-score")
 	assert.Equal(t, "3", cc[0].ID)
-	assert.Equal(t, "1", cc[1].ID)
-	assert.Equal(t, "2", cc[2].ID)
+	assert.Equal(t, "4", cc[1].ID)
+	assert.Equal(t, "1", cc[2].ID)
+	assert.Equal(t, "2", cc[3].ID)
 }