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-rw-r--r--packages/react-shared/src/components/nested_sidebar_menu.tsx2
1 files changed, 1 insertions, 1 deletions
diff --git a/packages/react-shared/src/components/nested_sidebar_menu.tsx b/packages/react-shared/src/components/nested_sidebar_menu.tsx
index 34f3eb276..fc5ab95fa 100644
--- a/packages/react-shared/src/components/nested_sidebar_menu.tsx
+++ b/packages/react-shared/src/components/nested_sidebar_menu.tsx
@@ -40,7 +40,7 @@ export class NestedSidebarMenu extends React.Component<NestedSidebarMenuProps, N
public static defaultProps: Partial<NestedSidebarMenuProps> = {
shouldReformatMenuItemNames: true,
};
- private _urlIntervalCheckId: number;
+ private _urlIntervalCheckId: number | undefined = undefined;
constructor(props: NestedSidebarMenuProps) {
super(props);
this.state = {