diff --git a/frontend/src/scripts/index.js b/frontend/src/scripts/index.js
index 7fd0377..44a8952 100644
--- a/frontend/src/scripts/index.js
+++ b/frontend/src/scripts/index.js
@@ -97,7 +97,7 @@ class Main extends Component {
                 showPlayButton={false}
                 startIndex={this.state.currentImage}
                 showThumbnails={false}
-                renderCustomControls={() => {this.renderCloseButton}}
+                renderCustomControls={() => {this.renderCloseButton()}}
             />
         </Modal>
         }