diff --git a/pkg/store/proxy_test.go b/pkg/store/proxy_test.go
index 8c5e749216..774f8ad194 100644
--- a/pkg/store/proxy_test.go
+++ b/pkg/store/proxy_test.go
@@ -32,6 +32,7 @@ import (
 	"github.com/efficientgo/core/testutil"
 
 	"github.com/thanos-io/thanos/pkg/component"
+	"github.com/thanos-io/thanos/pkg/info/infopb"
 	"github.com/thanos-io/thanos/pkg/store/labelpb"
 	"github.com/thanos-io/thanos/pkg/store/storepb"
 	storetestutil "github.com/thanos-io/thanos/pkg/store/storepb/testutil"
@@ -78,6 +79,34 @@ func TestProxyStore_Info(t *testing.T) {
 	testutil.Equals(t, int64(0), resp.MaxTime)
 }
 
+func TestProxyStore_TSDBInfos(t *testing.T) {
+	stores := []Client{
+		&storetestutil.TestClient{
+			StoreTSDBInfos: nil,
+		},
+		&storetestutil.TestClient{
+			StoreTSDBInfos: []infopb.TSDBInfo{
+				infopb.NewTSDBInfo(0, 10, []labelpb.ZLabel{{Name: "lbl", Value: "val1"}}),
+			},
+		},
+		&storetestutil.TestClient{
+			StoreTSDBInfos: []infopb.TSDBInfo{
+				infopb.NewTSDBInfo(0, 20, []labelpb.ZLabel{{Name: "lbl", Value: "val2"}}),
+			},
+		},
+	}
+	q := NewProxyStore(nil, nil,
+		func() []Client { return stores },
+		component.Query, nil, 0*time.Second, EagerRetrieval,
+	)
+
+	expected := []infopb.TSDBInfo{
+		infopb.NewTSDBInfo(0, 10, []labelpb.ZLabel{{Name: "lbl", Value: "val1"}}),
+		infopb.NewTSDBInfo(0, 20, []labelpb.ZLabel{{Name: "lbl", Value: "val2"}}),
+	}
+	testutil.Equals(t, expected, q.TSDBInfos())
+}
+
 func TestProxyStore_Series(t *testing.T) {
 	defer custom.TolerantVerifyLeak(t)