diff --git a/client/client_test.go b/client/client_test.go
index c1be42a..9975ea7 100644
--- a/client/client_test.go
+++ b/client/client_test.go
@@ -3454,6 +3454,8 @@ func TestExportJson(t *testing.T) {
 	db := hctx.GetDb(hctx.MakeContext())
 	e1 := testutils.MakeFakeHistoryEntry("echo synth1")
 	e1.StartTime = time.Unix(1234567, 0)
+	e1.CustomColumns = make(data.CustomColumns, 1)
+	e1.CustomColumns[0] = data.CustomColumn{Name: "MyCol", Val: "bar"}
 	require.NoError(t, db.Create(e1).Error)
 	e2 := testutils.MakeFakeHistoryEntry("echo synth2")
 	e1.StartTime = time.Unix(1244567, 0)
diff --git a/client/testdata/TestExportJson b/client/testdata/TestExportJson
index 9a1f73e..405dbbb 100644
--- a/client/testdata/TestExportJson
+++ b/client/testdata/TestExportJson
@@ -1,2 +1,2 @@
 {"command":"echo synth2","current_working_directory":"/tmp/","custom_columns":null,"end_time":"2022-10-18T04:43:24Z","exit_code":2,"home_directory":"/home/david/","hostname":"localhost","local_username":"david","start_time":"2022-10-18T04:43:21Z"}
-{"command":"echo synth1","current_working_directory":"/tmp/","custom_columns":null,"end_time":"2022-10-18T04:43:19Z","exit_code":2,"home_directory":"/home/david/","hostname":"localhost","local_username":"david","start_time":"1970-01-14T22:56:07-08:00"}
+{"command":"echo synth1","current_working_directory":"/tmp/","custom_columns":[{"name":"MyCol","value":"bar"}],"end_time":"2022-10-18T04:43:19Z","exit_code":2,"home_directory":"/home/david/","hostname":"localhost","local_username":"david","start_time":"1970-01-14T22:56:07-08:00"}