diff --git a/src/simple_variant.h b/src/simple_variant.h
index ce178a7..98af6b3 100644
--- a/src/simple_variant.h
+++ b/src/simple_variant.h
@@ -5,6 +5,7 @@
 #include <string>
 #include <tuple>
 #include <type_traits>
+#include <typeinfo>
 
 template <typename T>
 struct is_string