diff --git a/cmd/metacache-walk.go b/cmd/metacache-walk.go
index a1b260f2c..9aa2e8a03 100644
--- a/cmd/metacache-walk.go
+++ b/cmd/metacache-walk.go
@@ -258,12 +258,12 @@ func (s *storageRESTServer) WalkDirHandler(w http.ResponseWriter, r *http.Reques
 	vars := mux.Vars(r)
 	volume := vars[storageRESTVolume]
 	dirPath := vars[storageRESTDirPath]
-	prefix := vars[storageRESTPrefixFilter]
 	recursive, err := strconv.ParseBool(vars[storageRESTRecursive])
 	if err != nil {
 		s.writeErrorResponse(w, err)
 		return
 	}
+	prefix := r.URL.Query().Get(storageRESTPrefixFilter)
 	writer := streamHTTPResponse(w)
 	writer.CloseWithError(s.storage.WalkDir(r.Context(), WalkDirOptions{
 		Bucket:       volume,
diff --git a/cmd/storage-rest-server.go b/cmd/storage-rest-server.go
index c76292441..d99ae555e 100644
--- a/cmd/storage-rest-server.go
+++ b/cmd/storage-rest-server.go
@@ -1083,7 +1083,7 @@ func registerStorageRESTHandlers(router *mux.Router, endpointServerSets Endpoint
 			subrouter.Methods(http.MethodPost).Path(storageRESTVersionPrefix + storageRESTMethodVerifyFile).HandlerFunc(httpTraceHdrs(server.VerifyFileHandler)).
 				Queries(restQueries(storageRESTVolume, storageRESTFilePath)...)
 			subrouter.Methods(http.MethodPost).Path(storageRESTVersionPrefix + storageRESTMethodWalkDir).HandlerFunc(httpTraceHdrs(server.WalkDirHandler)).
-				Queries(restQueries(storageRESTVolume, storageRESTDirPath, storageRESTRecursive, storageRESTPrefixFilter)...)
+				Queries(restQueries(storageRESTVolume, storageRESTDirPath, storageRESTRecursive)...)
 		}
 	}
 }