diff --git a/_config.sh b/_config.sh
index 59489fd..b5674ea 100644
--- a/_config.sh
+++ b/_config.sh
@@ -7,7 +7,7 @@ TITLE="Blog | ~vern"
 DESCRIPTION="The blog of ~vern"
 COPYRIGHT="Copyright 2022, ~vern administrators"
 OS="Linux" # "Linux" for Linux, "BSD" for BSD Systems (including MacOS)
-HTML_LANG="en_US" # Your document (HTML) language setting
+HTML_LANG="en-US" # Your document (HTML) language setting
 
 # Blog structure settings (most users should use these defaults)
 ###################################################################################