diff --git a/src/btop_tools.hpp b/src/btop_tools.hpp
index 844ae48..4ae27f8 100644
--- a/src/btop_tools.hpp
+++ b/src/btop_tools.hpp
@@ -50,6 +50,7 @@ using std::string;
 using std::to_string;
 using std::tuple;
 using std::vector;
+using namespace fmt;
 using namespace fmt::literals;
 
 //? ------------------------------------------------- NAMESPACES ------------------------------------------------------