diff --git a/include/mbedtls/x509_csr.h b/include/mbedtls/x509_csr.h
index a0f1278..674f9ce 100644
--- a/include/mbedtls/x509_csr.h
+++ b/include/mbedtls/x509_csr.h
@@ -23,11 +23,7 @@
 #define MBEDTLS_X509_CSR_H
 #include "mbedtls/private_access.h"
 
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
+#include "mbedtls/build_info.h"
 
 #include "mbedtls/x509.h"