diff --git a/src/components/Editor/Attachments/AttachmentsList.vue b/src/components/Editor/Attachments/AttachmentsList.vue
index 612631c8c4..0efd173781 100644
--- a/src/components/Editor/Attachments/AttachmentsList.vue
+++ b/src/components/Editor/Attachments/AttachmentsList.vue
@@ -210,7 +210,9 @@ export default {
 			if (attachment.xNcHasPreview) {
 				return generateUrl(`/core/preview?fileId=${attachment.xNcFileId}&x=100&y=100&a=0`)
 			}
-			return attachment.formatType ? OC.MimeType.getIconUrl(attachment.formatType) : null
+			return attachment.formatType
+				? OC.MimeType.getIconUrl(attachment.formatType)
+				: OC.MimeType.getIconUrl('folder')
 		},
 		getBaseName(name) {
 			return name.split('/').pop()
diff --git a/src/views/EditSidebar.vue b/src/views/EditSidebar.vue
index 2f3d27f4d4..b6e6ccd778 100644
--- a/src/views/EditSidebar.vue
+++ b/src/views/EditSidebar.vue
@@ -524,7 +524,9 @@ export default {
 			if (attachment.xNcHasPreview) {
 				return generateUrl(`/core/preview?fileId=${attachment.xNcFileId}&x=100&y=100&a=0`)
 			}
-			return attachment.formatType ? OC.MimeType.getIconUrl(attachment.formatType) : null
+			return attachment.formatType
+				? OC.MimeType.getIconUrl(attachment.formatType)
+				: OC.MimeType.getIconUrl('folder')
 		},
 		acceptAttachmentsModal() {
 			if (!this.doNotShare) {