diff --git a/.storybook/styles.css b/.storybook/styles.css
index 947cea82..a2a9995c 100644
--- a/.storybook/styles.css
+++ b/.storybook/styles.css
@@ -164689,3 +164689,7 @@ div.markdown-typography-edit-content.markdown-typography-rtl {
   margin: 0 20px 0 0;
   padding: 0 4px 0 0;
 }
+
+.ant-btn-compact-first-item {
+  flex-grow: 1;
+}
\ No newline at end of file
diff --git a/src/widgets/custom/ButtonGroup.tsx b/src/widgets/custom/ButtonGroup.tsx
index e7ce0860..f2176593 100644
--- a/src/widgets/custom/ButtonGroup.tsx
+++ b/src/widgets/custom/ButtonGroup.tsx
@@ -76,7 +76,7 @@ export const ButtonGroup = (props: ButtonGroupProps) => {
     return null;
   } else if (ooui.buttons.length > 1) {
     return (
-      <Field ooui={new FieldOoui({ ...{ ooui } })}>
+      <Field ooui={new FieldOoui({ ...{ defaultButton } })}>
         <Dropdown.Button
           disabled={!activated || readOnly}
           onClick={onClick}