diff --git a/src/views/trials/trials-panel/visit/crc-upload/components/previousFiles.vue b/src/views/trials/trials-panel/visit/crc-upload/components/previousFiles.vue
index 340d6874..1a865863 100644
--- a/src/views/trials/trials-panel/visit/crc-upload/components/previousFiles.vue
+++ b/src/views/trials/trials-panel/visit/crc-upload/components/previousFiles.vue
@@ -99,7 +99,7 @@ export default {
       for (var i = 0; i < this.selectArr.length; ++i) {
         const file = await this.fileToBlob(this.selectArr[i])
         var timestamp = Date.now()
-        const res = await this.OSSclient.put(`/${this.trialId}/ClinicalData/${timestamp}${this.selectArr[i].name}`, file)
+        const res = await this.OSSclient.put(`/${this.trialId}/ClinicalData/${timestamp}_${this.selectArr[i].name}`, file)
         this.addFileList.push({ fileName: this.selectArr[i].name, path: this.$getObjectName(res.url), url: this.$getObjectName(res.url) })
       }
       this.saveClinicalData()