Merge branch 'master' into stackingSections

1 files changed, 1 insertions, 1 deletions

diff --git a/src/client/util/History.ts b/src/client/util/History.ts
index cbf5b3fc8..e9ff21b22 100644
--- a/src/client/util/History.ts
+++ b/src/client/util/History.ts
@@ -129,7 +129,7 @@ export namespace HistoryUtil {
 
     function addStringifier(type: string, keys: string[], customStringifier?: (state: ParsedUrl, current: string) => string) {
         stringifiers[type] = state => {
-            let path = DocServer.prepend(`/${type}`);
+            let path = Utils.prepend(`/${type}`);
             if (customStringifier) {
                 path = customStringifier(state, path);
             }