diff --git a/apps/OpenSign/src/primitives/sanitizeFileName.js b/apps/OpenSign/src/primitives/sanitizeFileName.js
index 0d0be1abc1..7c1126e357 100644
--- a/apps/OpenSign/src/primitives/sanitizeFileName.js
+++ b/apps/OpenSign/src/primitives/sanitizeFileName.js
@@ -1,5 +1,7 @@
 function sanitizeFileName(fileName) {
   // Remove spaces and invalid characters
-  return fileName.replace(/[^a-zA-Z0-9._-]/g, "");
+  const file = fileName.replace(/[^a-zA-Z0-9._-]/g, "");
+  const removedot = file.replace(/\.(?=.*\.)/g, "");
+  return removedot.replace(/[^a-zA-Z0-9._-]/g, "");
 }
 export default sanitizeFileName;