diff --git a/CHANGELOG.md b/CHANGELOG.md
index 610bdc35..20d0851f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed incorrect width of shapes borders in some cases
 - Fixed annotation parser for tracks with a start frame less than the first segment frame
 - Fixed interpolation on the server near outside frames
+- Fixed dump for case when task name has a slash
 
 ### Security
 -
diff --git a/cvat/apps/engine/static/engine/js/base.js b/cvat/apps/engine/static/engine/js/base.js
index 21f0452a..725ac4ab 100644
--- a/cvat/apps/engine/static/engine/js/base.js
+++ b/cvat/apps/engine/static/engine/js/base.js
@@ -128,6 +128,9 @@ function showOverlay(message) {
 }
 
 async function dumpAnnotationRequest(tid, taskName) {
+    // URL Router on the server doesn't work correctly with slashes.
+    // So, we have to replace them on the client side
+    taskName = taskName.replace(/\//g, '_');
     const name = encodeURIComponent(`${tid}_${taskName}`);
     return new Promise((resolve, reject) => {
         const url = `/api/v1/tasks/${tid}/annotations/${name}`;