diff --git a/frontend/src/utils/inputs/file-input.js b/frontend/src/utils/inputs/file-input.js
index 15f330e00..676d6ff2c 100644
--- a/frontend/src/utils/inputs/file-input.js
+++ b/frontend/src/utils/inputs/file-input.js
@@ -41,8 +41,8 @@ export class FileInput {
 
     // add change listener
     this._element.addEventListener('change', () => {
-      this.updateLabel();
-      this.renderFileList();
+      this._updateLabel();
+      this._renderFileList();
     });
 
     // add util class for styling and mark as initialized
@@ -64,7 +64,7 @@ export class FileInput {
     Array.from(files).forEach((file) => {
       const fileDisplayEl = document.createElement('li');
       fileDisplayEl.innerHTML = file.name;
-      this.fileList.appendChild(fileDisplayEl);
+      this._fileList.appendChild(fileDisplayEl);
     });
   }