diff --git a/packages/ui/components/input-file/src/FileHandle.js b/packages/ui/components/input-file/src/FileHandle.js
index 596407b55..3d186c092 100644
--- a/packages/ui/components/input-file/src/FileHandle.js
+++ b/packages/ui/components/input-file/src/FileHandle.js
@@ -53,7 +53,7 @@ export class FileHandle {
    */
   // eslint-disable-next-line class-methods-use-this
   _getFileNameExtension(fileName) {
-    return fileName.slice(fileName.lastIndexOf('.') + 1);
+    return fileName.slice(fileName.lastIndexOf('.'));
   }
 
   // TODO: seems to suggest upload is going on...
diff --git a/packages/ui/components/input-file/src/LionInputFile.js b/packages/ui/components/input-file/src/LionInputFile.js
index b17a602b7..113866008 100644
--- a/packages/ui/components/input-file/src/LionInputFile.js
+++ b/packages/ui/components/input-file/src/LionInputFile.js
@@ -232,7 +232,7 @@ export class LionInputFile extends ScopedElementsMixin(LocalizeMixin(LionField))
     /** @type {string[]} */
     let allowedFileExtensions = [];
     if (this.accept) {
-      const acceptedFiles = this.accept.replace(/\s+/g, '').replace(/\.+/g, '').split(',');
+      const acceptedFiles = this.accept.replace(/\s+/g, '').split(',');
       allowedFileTypes = acceptedFiles.filter(acceptedFile => acceptedFile.includes('/'));
       allowedFileExtensions = acceptedFiles.filter(acceptedFile => !acceptedFile.includes('/'));
     }
@@ -692,8 +692,6 @@ export class LionInputFile extends ScopedElementsMixin(LocalizeMixin(LionField))
 
     if (allowedFileExtensions.length) {
       array = allowedFileExtensions;
-      // eslint-disable-next-line no-return-assign
-      array = array.map(item => (item = `.${item}`));
       lastItem = array.pop();
       arrayLength = array.length;
     } else if (allowedFileTypes.length) {