diff --git a/system/blueprints/user/account.yaml b/system/blueprints/user/account.yaml
index 1fe3eae5a..cfe537620 100644
--- a/system/blueprints/user/account.yaml
+++ b/system/blueprints/user/account.yaml
@@ -111,6 +111,7 @@ form:
                     type: text
                     label: PLUGIN_ADMIN.YUBIKEY_ID
                     description: PLUGIN_ADMIN.YUBIKEY_HELP
+                    size: small
                     maxlength: 12