diff --git a/templates/common/footer.html b/templates/common/footer.html
index 93ffe1b..f2a03a8 100644
--- a/templates/common/footer.html
+++ b/templates/common/footer.html
@@ -6,7 +6,7 @@
                 <th:block th:if="${#strings.isEmpty(site.logo)}" th:text="${site.title}"/>
                 <th:block th:unless="${#strings.isEmpty(site.logo)}">
                   <img class="logo-img" th:src="${site.logo}" th:alt="${site.title}" height="28">
-                  <img class="logo-img-dark" th:src="${#strings.defaultString(theme.config.basic_info.night_logo, ${site.logo})}" th:alt="${site.title}" height="28">
+                  <img class="logo-img-dark" th:src="${#strings.defaultString(theme.config.basic_info.night_logo, site.logo)}" th:alt="${site.title}" height="28">
                 </th:block>
               </a>
             </li>
diff --git a/templates/common/navbar.html b/templates/common/navbar.html
index 1343889..a59a60e 100644
--- a/templates/common/navbar.html
+++ b/templates/common/navbar.html
@@ -6,7 +6,7 @@
                 <th:block th:if="${#strings.isEmpty(site.logo)}" th:text="${site.title}"/>
                 <th:block th:unless="${#strings.isEmpty(site.logo)}">
                     <img class="logo-img" th:src="${site.logo}" th:alt="${site.title}" height="28">
-                    <img class="logo-img-dark" th:src="${#strings.defaultString(theme.config.basic_info.night_logo, ${site.logo})}" th:alt="${site.title}" height="28">
+                    <img class="logo-img-dark" th:src="${#strings.defaultString(theme.config.basic_info.night_logo, site.logo)}" th:alt="${site.title}" height="28">
                 </th:block>
             </a>
             <nav class="navbar-nav active-animate">