diff --git a/var/lib/gsl/scripts/gsl__do_commons b/var/lib/gsl/scripts/gsl__do_commons
index b293705..78bb151 100644
--- a/var/lib/gsl/scripts/gsl__do_commons
+++ b/var/lib/gsl/scripts/gsl__do_commons
@@ -185,7 +185,7 @@ case "$1" in
 
   "make")
     echo -ne "\r\033[2K: Converting icodes..."
-    gsl_html_icode_o="<code class=\"${gsl_site_css}-code\">"
+    gsl_html_icode_o="<code class=\"${gsl_site_css}_code\">"
     gsl_html_icode_c="</code>"
     
     while IFS=: read -r "n" "line"