diff --git a/_config.yml b/_config.yml
index 23100de..548c14d 100644
--- a/_config.yml
+++ b/_config.yml
@@ -7,7 +7,7 @@ title: Curben
 subtitle:
 description:
 author: curben
-language: en
+language: en-GB
 timezone:
 
 # URL
diff --git a/source/_headers b/source/_headers
index 0f2003e..61a4e61 100644
--- a/source/_headers
+++ b/source/_headers
@@ -2,7 +2,7 @@
   X-Frame-Options: DENY
   X-XSS-Protection: 1; mode=block
   X-Content-Type-Options: nosniff
-  Content-Language: en
+  Content-Language: en-GB
   Content-Security-Policy: default-src 'self'; child-src 'none'; connect-src 'none'; font-src 'none'; frame-src 'none'; img-src 'self'; manifest-src 'none'; media-src 'none'; object-src 'none'; prefetch-src 'none'; script-src 'self'; style-src 'self'; worker-src 'none'; base-uri 'none'; form-action https://duckduckgo.com; frame-ancestors 'none'; block-all-mixed-content
   Referrer-Policy: no-referrer
   Strict-Transport-Security: max-age=31536000
diff --git a/themes/chameleon/languages/en.yml b/themes/chameleon/languages/en-GB.yml
similarity index 100%
rename from themes/chameleon/languages/en.yml
rename to themes/chameleon/languages/en-GB.yml
diff --git a/themes/chameleon/scripts/openGraph.js b/themes/chameleon/scripts/openGraph.js
index 1af126c..6d3e20d 100644
--- a/themes/chameleon/scripts/openGraph.js
+++ b/themes/chameleon/scripts/openGraph.js
@@ -42,7 +42,7 @@ function openGraphHelper () {
   const siteName = config.subtitle || theme.nickname || false
   const published = page.date || false
   const updated = page.lastUpdated || false
-  const language = 'en_GB'
+  const language = config.language.replace('-', '_')
   let result = ''
 
   if (description) {