diff --git a/attn/ti_handler.hpp b/attn/ti_handler.hpp
index 83cc0eb..9f70070 100644
--- a/attn/ti_handler.hpp
+++ b/attn/ti_handler.hpp
@@ -2,6 +2,9 @@
 
 #include <stdint.h>
 
+#include <map>
+#include <string>
+
 /**
  * @brief TI special attention handler
  *