diff --git a/cmd/subscribers.go b/cmd/subscribers.go
index 5778083..ccb95b9 100644
--- a/cmd/subscribers.go
+++ b/cmd/subscribers.go
@@ -106,9 +106,6 @@ func handleQuerySubscribers(c echo.Context) error {
 		app = c.Get("app").(*App)
 		pg  = getPagination(c.QueryParams(), 30)
 
-		// Limit the subscribers to a particular list?
-		listID, _ = strconv.Atoi(c.FormValue("list_id"))
-
 		// The "WHERE ?" bit.
 		query   = sanitizeSQLExp(c.FormValue("query"))
 		orderBy = c.FormValue("order_by")
@@ -116,11 +113,10 @@ func handleQuerySubscribers(c echo.Context) error {
 		out     = subsWrap{Results: make([]models.Subscriber, 0, 1)}
 	)
 
-	listIDs := pq.Int64Array{}
-	if listID < 0 {
-		return echo.NewHTTPError(http.StatusBadRequest, app.i18n.T("globals.messages.errorID"))
-	} else if listID > 0 {
-		listIDs = append(listIDs, int64(listID))
+	// Limit the subscribers to sepcific lists?
+	listIDs, err := getQueryListIDs(c.QueryParams())
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, app.i18n.T("globals.messages.invalidID"))
 	}
 
 	// There's an arbitrary query condition.
@@ -196,18 +192,14 @@ func handleExportSubscribers(c echo.Context) error {
 	var (
 		app = c.Get("app").(*App)
 
-		// Limit the subscribers to a particular list?
-		listID, _ = strconv.Atoi(c.FormValue("list_id"))
-
 		// The "WHERE ?" bit.
 		query = sanitizeSQLExp(c.FormValue("query"))
 	)
 
-	listIDs := pq.Int64Array{}
-	if listID < 0 {
-		return echo.NewHTTPError(http.StatusBadRequest, app.i18n.T("globals.messages.errorID"))
-	} else if listID > 0 {
-		listIDs = append(listIDs, int64(listID))
+	// Limit the subscribers to sepcific lists?
+	listIDs, err := getQueryListIDs(c.QueryParams())
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, app.i18n.T("globals.messages.invalidID"))
 	}
 
 	// There's an arbitrary query condition.
@@ -866,3 +858,22 @@ func sanitizeSQLExp(q string) string {
 	}
 	return q
 }
+
+func getQueryListIDs(qp url.Values) (pq.Int64Array, error) {
+	out := pq.Int64Array{}
+	if vals, ok := qp["list_id"]; ok {
+		for _, v := range vals {
+			if v == "" {
+				continue
+			}
+
+			listID, err := strconv.Atoi(v)
+			if err != nil {
+				return nil, err
+			}
+			out = append(out, int64(listID))
+		}
+	}
+
+	return out, nil
+}
diff --git a/frontend/src/views/Subscribers.vue b/frontend/src/views/Subscribers.vue
index 0f24b92..3d76e79 100644
--- a/frontend/src/views/Subscribers.vue
+++ b/frontend/src/views/Subscribers.vue
@@ -399,7 +399,10 @@ export default Vue.extend({
       this.$utils.confirm(this.$t('subscribers.confirmExport', { num: this.subscribers.total }), () => {
         const q = new URLSearchParams();
         q.append('query', this.queryParams.queryExp);
-        q.append('list_id', this.queryParams.listID);
+
+        if (this.queryParams.listID) {
+          q.append('list_id', this.queryParams.listID);
+        }
         document.location.href = `${uris.exportSubscribers}?${q.toString()}`;
       });
     },
diff --git a/queries.sql b/queries.sql
index 108abf6..9160cd2 100644
--- a/queries.sql
+++ b/queries.sql
@@ -241,7 +241,7 @@ SELECT subscribers.* FROM subscribers
         (CASE WHEN CARDINALITY($1::INT[]) > 0 THEN true ELSE false END)
         AND subscriber_lists.subscriber_id = subscribers.id
     )
-    WHERE subscriber_lists.list_id = ALL($1::INT[])
+    WHERE (CARDINALITY($1) = 0 OR subscriber_lists.list_id = ANY($1::INT[]))
     %s
     ORDER BY %s %s OFFSET $2 LIMIT (CASE WHEN $3 = 0 THEN NULL ELSE $3 END);
 
@@ -254,7 +254,7 @@ SELECT COUNT(*) AS total FROM subscribers
         (CASE WHEN CARDINALITY($1::INT[]) > 0 THEN true ELSE false END)
         AND subscriber_lists.subscriber_id = subscribers.id
     )
-    WHERE subscriber_lists.list_id = ALL($1::INT[]) %s;
+    WHERE (CARDINALITY($1) = 0 OR subscriber_lists.list_id = ANY($1::INT[])) %s;
 
 -- name: query-subscribers-for-export
 -- raw: true