diff --git a/include/tools.h b/include/tools.h
index 13931e876..511a94070 100644
--- a/include/tools.h
+++ b/include/tools.h
@@ -282,5 +282,14 @@ FeedCategories readCategoriesFromFeed(const std::string& content);
  * @return full language name.
  */
 std::string getLanguageSelfName(const std::string& lang);
+
+/**
+ * Retrieve the translation corresponding to key in language lang
+ *
+ * @param lang ISO 639-3 language code.
+ * @param key translation key string
+ * @return translated key
+ */
+std::string getTranslatedString(const std::string& lang, const std::string& key);
 }
 #endif // KIWIX_TOOLS_H
diff --git a/src/server/i18n.h b/src/server/i18n.h
index 1e42cac68..e20f425f9 100644
--- a/src/server/i18n.h
+++ b/src/server/i18n.h
@@ -20,6 +20,7 @@
 #ifndef KIWIX_SERVER_I18N
 #define KIWIX_SERVER_I18N
 
+#include <tools.h>
 #include <map>
 #include <string>
 #include <mustache.hpp>
@@ -40,8 +41,6 @@ struct I18nStringTable {
   const char* get(const std::string& key) const;
 };
 
-std::string getTranslatedString(const std::string& lang, const std::string& key);
-
 namespace i18n
 {