diff --git a/CrossDown/Core.py b/CrossDown/Core.py
index f227fea..b11e132 100644
--- a/CrossDown/Core.py
+++ b/CrossDown/Core.py
@@ -295,6 +295,8 @@ class InlineCode:
                 variable = ''.join(variables)
                 if variable in self.variable:
                     return self.variable[variable]
+                else:
+                    return variable
             case _:
                 return f'<code>{source}</code>'
 
diff --git a/README.html b/README.html
index 91d5b6e..d02a377 100644
--- a/README.html
+++ b/README.html
@@ -207,7 +207,7 @@
     <p><span class="keys"><kbd class="key-control">Ctrl</kbd><span>+</span><kbd class="key-alt">Alt</kbd><span>+</span><kbd class="key-delete">Del</kbd></span></p>
     <p><kbd>Enter</kbd></p>
     <h3 id="4.1.4">4.1.4 突出</h3>
-    <p>`{突出内容}`</p>
+    <p>突出内容</p>
     <h2 id="4.2">4.2 多行</h2>
     <h3 id="4.2.1">4.2.1 YAML</h3>
     <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal">2</span>