diff --git a/src/Location.cpp b/src/Location.cpp
index 811931f..6d88788 100644
--- a/src/Location.cpp
+++ b/src/Location.cpp
@@ -1,4 +1,5 @@
 #include "Location.h"
+#include "FormatString/FormatString.hpp"
 #include <sstream>
 
 Location::Location(int ln, int col, std::string file) : line(ln), column(col), fname(file)
@@ -18,7 +19,7 @@ std::string Location::str() const
 
 std::string Location::paren_str() const
 {
-    return "(" + this->str() + ")";
+    return format_string("(%s)", this->str());
 }
 
 void Location::advance()