diff --git a/config/filters/navigation.js b/config/filters/navigation.js
index efff24f..137b5dc 100644
--- a/config/filters/navigation.js
+++ b/config/filters/navigation.js
@@ -1,4 +1,12 @@
+const normalizeUrl = (url) =>
+  url.replace(/index\.php$|index\.html$/i, '').replace(/\.php$|\.html$/i, '') || '/';
+
 export default {
-  isLinkActive: (category, page) =>
-    page.includes(category) && page.split('/').filter((a) => a !== '').length <= 1
+  isLinkActive: (category, page) => {
+    const normalized = normalizeUrl(page);
+    return (
+      normalized.includes(category) && normalized.split('/').filter((a) => a !== '').length <= 1
+    );
+  },
+  normalizeUrl
 };
diff --git a/package-lock.json b/package-lock.json
index c93983b..345cee1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "coryd.dev",
-  "version": "10.6.4",
+  "version": "10.6.5",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "coryd.dev",
-      "version": "10.6.4",
+      "version": "10.6.5",
       "license": "MIT",
       "dependencies": {
         "minisearch": "^7.1.2",
diff --git a/package.json b/package.json
index 274dc22..e742470 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "coryd.dev",
-  "version": "10.6.4",
+  "version": "10.6.5",
   "description": "The source for my personal site. Built using 11ty (and other tools).",
   "type": "module",
   "engines": {
diff --git a/src/includes/static/layout/header.liquid b/src/includes/static/layout/header.liquid
index e15f394..4c0fc42 100644
--- a/src/includes/static/layout/header.liquid
+++ b/src/includes/static/layout/header.liquid
@@ -1,3 +1,4 @@
+{%- assign normalizedUrl = page.url | normalizeUrl -%}
 {%- capture headerContent -%}
   <img
     srcset="
@@ -14,7 +15,7 @@
 {%- endcapture -%}
 <section class="main-title">
   <h1>
-    {%- if page.url == "/" -%}
+    {%- if normalizedUrl == "/" -%}
       {{ headerContent }}
     {%- else -%}
       <a href="/" tabindex="0">{{ headerContent }}</a>