diff --git a/include/nlohmann/detail/view/compare.hpp b/include/nlohmann/detail/view/compare.hpp
index 44a8e1d5b..9a50590a3 100644
--- a/include/nlohmann/detail/view/compare.hpp
+++ b/include/nlohmann/detail/view/compare.hpp
@@ -10,6 +10,7 @@
 
 #include <algorithm> // sort, stable_sort
 #include <cstddef> // size_t
+#include <string> // string
 #include <utility> // move, pair
 #include <vector> // vector
 
diff --git a/single_include/nlohmann/json_view.hpp b/single_include/nlohmann/json_view.hpp
index 0950b9edc..c6ddda728 100644
--- a/single_include/nlohmann/json_view.hpp
+++ b/single_include/nlohmann/json_view.hpp
@@ -1580,6 +1580,7 @@ NLOHMANN_JSON_NAMESPACE_END
 
 #include <algorithm> // sort, stable_sort
 #include <cstddef> // size_t
+#include <string> // string
 #include <utility> // move, pair
 #include <vector> // vector