diff --git a/library/rsa_alt_helpers.h b/library/rsa_alt_helpers.h
index 90c88a2..d6fc8e5 100644
--- a/library/rsa_alt_helpers.h
+++ b/library/rsa_alt_helpers.h
@@ -55,11 +55,7 @@
 #ifndef MBEDTLS_RSA_INTERNAL_H
 #define MBEDTLS_RSA_INTERNAL_H
 
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
+#include "mbedtls/build_info.h"
 
 #include "mbedtls/bignum.h"