diff --git a/pkg/cache/cache.go b/pkg/cache/cache.go
index a1bfb9f84..81b688d19 100644
--- a/pkg/cache/cache.go
+++ b/pkg/cache/cache.go
@@ -126,7 +126,7 @@ func WithCache(key string, obj interface{}, fetcher DataFetcher) error {
 	return nil
 }
 
-func LoadExchangeMarketsWithCache(ctx context.Context, ex types.Exchange) (markets types.MarketMap, err error) {
+func LoadExchangeMarketsWithCache(ctx context.Context, ex types.ExchangePublic) (markets types.MarketMap, err error) {
 	inMem, ok := util.GetEnvVarBool("USE_MARKETS_CACHE_IN_MEMORY")
 	if ok && inMem {
 		return loadMarketsFromMem(ctx, ex)
@@ -137,7 +137,7 @@ func LoadExchangeMarketsWithCache(ctx context.Context, ex types.Exchange) (marke
 }
 
 // loadMarketsFromMem is useful for one process to run multiple bbgos in different go routines.
-func loadMarketsFromMem(ctx context.Context, ex types.Exchange) (markets types.MarketMap, _ error) {
+func loadMarketsFromMem(ctx context.Context, ex types.ExchangePublic) (markets types.MarketMap, _ error) {
 	exName := ex.Name().String()
 	if globalMarketMemCache.IsOutdated(exName) {
 		op := func() error {
@@ -162,7 +162,7 @@ func loadMarketsFromMem(ctx context.Context, ex types.Exchange) (markets types.M
 	return rst, nil
 }
 
-func loadMarketsFromFile(ctx context.Context, ex types.Exchange) (markets types.MarketMap, err error) {
+func loadMarketsFromFile(ctx context.Context, ex types.ExchangePublic) (markets types.MarketMap, err error) {
 	key := fmt.Sprintf("%s-markets", ex.Name())
 	if futureExchange, implemented := ex.(types.FuturesExchange); implemented {
 		settings := futureExchange.GetFuturesSettings()
diff --git a/pkg/cache/cache_test.go b/pkg/cache/cache_test.go
index 49ee23ab4..ba89f84b8 100644
--- a/pkg/cache/cache_test.go
+++ b/pkg/cache/cache_test.go
@@ -67,7 +67,7 @@ func Test_loadMarketsFromMem(t *testing.T) {
 	mockCtrl := gomock.NewController(t)
 	defer mockCtrl.Finish()
 
-	mockEx := mocks.NewMockExchange(mockCtrl)
+	mockEx := mocks.NewMockExchangePublic(mockCtrl)
 	mockEx.EXPECT().Name().Return(types.ExchangeName("max")).AnyTimes()
 	mockEx.EXPECT().QueryMarkets(gomock.Any()).Return(nil, errors.New("faked")).Times(1)
 	mockEx.EXPECT().QueryMarkets(gomock.Any()).Return(types.MarketMap{
diff --git a/pkg/types/exchange.go b/pkg/types/exchange.go
index b67a9b2b2..bb5344600 100644
--- a/pkg/types/exchange.go
+++ b/pkg/types/exchange.go
@@ -87,6 +87,12 @@ type Exchange interface {
 	ExchangeTradeService
 }
 
+//go:generate mockgen -destination=mocks/mock_exchange_public.go -package=mocks . ExchangePublic
+type ExchangePublic interface {
+	ExchangeMinimal
+	ExchangeMarketDataService
+}
+
 // ExchangeBasic is the new type for replacing the original Exchange interface
 type ExchangeBasic = Exchange