diff --git a/src/services/api/api.service.js b/src/services/api/api.service.js
index 8e4be73eb..975b04c3e 100644
--- a/src/services/api/api.service.js
+++ b/src/services/api/api.service.js
@@ -323,7 +323,7 @@ const unmuteConversation = ({ id, credentials }) => {
 const blockUser = ({ id, expiresIn, credentials }) => {
   const payload = {}
   if (expiresIn) {
-    payload.expires_in = expiresIn
+    payload.duration = expiresIn
   }
 
   return promisedRequest({