diff --git a/scripts/core/ui/components/MultiSelectTreeWithTemplate.tsx b/scripts/core/ui/components/MultiSelectTreeWithTemplate.tsx
index 54f81cd7f6..a4984dfee9 100644
--- a/scripts/core/ui/components/MultiSelectTreeWithTemplate.tsx
+++ b/scripts/core/ui/components/MultiSelectTreeWithTemplate.tsx
@@ -64,6 +64,7 @@ export class MultiSelectTreeWithTemplate<T> extends React.PureComponent<IProps<T
                     allowMultiple={this.props.allowMultiple}
                     singleLevelSearch
                     readOnly={this.props.readOnly}
+                    zIndex={1051}
                 />
             );
         } else if (props.kind === 'asynchronous') {
@@ -89,6 +90,7 @@ export class MultiSelectTreeWithTemplate<T> extends React.PureComponent<IProps<T
                     valueTemplate={(item) => <ValueTemplate item={item} />}
                     allowMultiple={this.props.allowMultiple}
                     readOnly={this.props.readOnly}
+                    zIndex={1051}
                 />
             );
         } else {