diff --git a/apps/client/src/services/css_class_manager.ts b/apps/client/src/services/css_class_manager.ts
index 097b7c70f..f148707c2 100644
--- a/apps/client/src/services/css_class_manager.ts
+++ b/apps/client/src/services/css_class_manager.ts
@@ -34,7 +34,7 @@ function createClassForColor(colorString: string | null) {
         $("head").append(`<style>
             .${className}, span.fancytree-active.${className} {
                 --light-theme-custom-color: ${adjustedColor.lightThemeColor};
-                --dark-theme-custom-color: ${adjustedColor.darkThemeColor}
+                --dark-theme-custom-color: ${adjustedColor.darkThemeColor};
             }
         </style>`);