diff --git a/src/useOfflineMutation.js b/src/useOfflineMutation.js
index 873eee7..832e642 100644
--- a/src/useOfflineMutation.js
+++ b/src/useOfflineMutation.js
@@ -6,7 +6,7 @@ import { sendRequest } from './api';
 const useOfflineMutation = () => {
   const queryClient = useQueryClient();
 
-  const mutation = queryClient.setMutationDefaults(sendRequest, {
+  queryClient.setMutationDefaults(['sendRequest'], {
     onMutate: async (newData) => {
       await queryClient.cancelQueries('data');
 
@@ -24,6 +24,8 @@ const useOfflineMutation = () => {
     },
   });
 
+  const mutation = useMutation({mutationKey: ['sendRequest']});
+
   return mutation;
 };