diff --git a/x-pack/plugins/spaces/public/management/edit_space/delete_spaces_button.tsx b/x-pack/plugins/spaces/public/management/edit_space/delete_spaces_button.tsx
index cf131b4c64029..a03d42d10c30f 100644
--- a/x-pack/plugins/spaces/public/management/edit_space/delete_spaces_button.tsx
+++ b/x-pack/plugins/spaces/public/management/edit_space/delete_spaces_button.tsx
@@ -42,11 +42,11 @@ export class DeleteSpacesButton extends Component<Props, State> {
 
     let ButtonComponent: any = EuiButton;
 
-    const extraProps: Partial<EuiButtonIconProps> = {};
+    let extraProps: EuiButtonIconProps | undefined;
 
     if (this.props.style === 'icon') {
       ButtonComponent = EuiButtonIcon;
-      extraProps.iconType = 'trash';
+      extraProps = { iconType: 'trash' };
     }
 
     return (