diff --git a/src/webui/api/synccontroller.cpp b/src/webui/api/synccontroller.cpp
index d8fe4d464..9c1995f06 100644
--- a/src/webui/api/synccontroller.cpp
+++ b/src/webui/api/synccontroller.cpp
@@ -320,7 +320,7 @@ namespace
 //  - "full_update": full data update flag
 //  - "torrents": dictionary contains information about torrents.
 //  - "torrents_removed": a list of hashes of removed torrents
-//  - "categories": list of categories
+//  - "categories": map of categories info
 //  - "categories_removed": list of removed categories
 //  - "server_state": map contains information about the state of the server
 // The keys of the 'torrents' dictionary are hashes of torrents.
@@ -399,11 +399,16 @@ void SyncController::maindataAction()
 
     data["torrents"] = torrents;
 
-    QVariantList categories;
-    for (auto i = session->categories().cbegin(); i != session->categories().cend(); ++i)
-        categories << i.key();
+    QVariantList categoriesList;
+    const auto categories = session->categories();
+    for (auto key : categories.keys()) {
+        categoriesList << QVariantMap {
+            {"name", key},
+            {"savePath", categories.value(key)},
+        };
+    }
 
-    data["categories"] = categories;
+    data["categories"] = categoriesList;
 
     QVariantMap serverState = getTranserInfo();
     serverState[KEY_SYNC_MAINDATA_QUEUEING] = session->isQueueingSystemEnabled();
diff --git a/src/webui/www/private/scripts/client.js b/src/webui/www/private/scripts/client.js
index 5561c29ef..667298ce9 100644
--- a/src/webui/www/private/scripts/client.js
+++ b/src/webui/www/private/scripts/client.js
@@ -317,9 +317,10 @@ window.addEvent('load', function() {
                     }
                     if (response['categories']) {
                         response['categories'].each(function(category) {
-                            var categoryHash = genHash(category);
+                            var categoryHash = genHash(category.name);
                             category_list[categoryHash] = {
-                                name: category,
+                                name: category.name,
+                                savePath: category.savePath,
                                 torrents: []
                             };
                         });
@@ -327,7 +328,7 @@ window.addEvent('load', function() {
                     }
                     if (response['categories_removed']) {
                         response['categories_removed'].each(function(category) {
-                            var categoryHash = genHash(category);
+                            var categoryHash = genHash(category.name);
                             delete category_list[categoryHash];
                         });
                         update_categories = true;