diff --git a/src/idl_gen_cpp.cpp b/src/idl_gen_cpp.cpp
index dfe55e0..6072c08 100644
--- a/src/idl_gen_cpp.cpp
+++ b/src/idl_gen_cpp.cpp
@@ -16,6 +16,7 @@
 
 // independent from idl_parser, since this code is not needed for most clients
 
+#include <limits>
 #include <string>
 #include <unordered_set>