diff --git a/scripts/install b/scripts/install
index 01dfec1..05f7097 100644
--- a/scripts/install
+++ b/scripts/install
@@ -131,7 +131,7 @@ chown $app:$app "$final_path/config/configuration.yml"
 
 if [[ "$path_url" != "/" ]]
 then
-     echo Redmine::Utils::relative_url_root = "$path_url" >> "$final_path/config/environment.rb"
+     echo "Redmine::Utils::relative_url_root = '$path_url'" >> "$final_path/config/environment.rb"
 fi
 
 #=================================================