diff --git a/modules/backend/formwidgets/fileupload/assets/css/fileupload.css b/modules/backend/formwidgets/fileupload/assets/css/fileupload.css
index c10ed03f0..2f288cd32 100644
--- a/modules/backend/formwidgets/fileupload/assets/css/fileupload.css
+++ b/modules/backend/formwidgets/fileupload/assets/css/fileupload.css
@@ -69,6 +69,8 @@
 .field-fileupload.style-image-multi .upload-object:hover .icon-container{border-right-color:#4da7e8 !important}
 .field-fileupload.style-image-multi .upload-object:hover h4{padding-right:35px}
 .field-fileupload.style-image-multi.is-preview .upload-files-container{margin-left:0}
+.form-sidebar .field-fileupload.style-image-multi .upload-files-container {margin-left:0px}
+.form-sidebar .field-fileupload.style-image-multi .upload-button {width: 100%}
 @media (max-width:1280px){.field-fileupload.style-image-multi .upload-object{width:230px}
 }
 @media (max-width:1024px){.field-fileupload.style-image-multi .upload-button{width:100%}
diff --git a/modules/backend/formwidgets/fileupload/assets/less/fileupload.imagemulti.less b/modules/backend/formwidgets/fileupload/assets/less/fileupload.imagemulti.less
index 58afc4540..79c2eb32e 100644
--- a/modules/backend/formwidgets/fileupload/assets/less/fileupload.imagemulti.less
+++ b/modules/backend/formwidgets/fileupload/assets/less/fileupload.imagemulti.less
@@ -91,6 +91,18 @@
     }
 }
 
+//
+// On Sidebar
+//
+
+.form-sidebar .field-fileupload.style-image-multi .upload-files-container {
+    margin-left: 0px;
+}
+
+.form-sidebar .field-fileupload.style-image-multi .upload-button {
+    width: 100%;
+}
+
 //
 // Media
 //