diff --git a/README.md b/README.md
index 9c1e378..2fac22a 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,8 @@ Note:
 
 You can choose to use any or all of the modes-of-operations, by defining the symbols CBC, CTR or ECB. See the header file for clarification.
 
+C++ users should `#include` [aes.hpp](https://github.com/kokke/tiny-AES-c/blob/master/aes.hpp) instead of [aes.h](https://github.com/kokke/tiny-AES-c/blob/master/aes.h)
+
 There is no built-in error checking or protection from out-of-bounds memory access errors as a result of malicious input.
 
 The module uses less than 200 bytes of RAM and 1-2K ROM when compiled for ARM, but YMMV depending on which modes are enabled.