diff --git a/library/ecp_internal_alt.h b/library/ecp_internal_alt.h
index 9b157ea..a7544aa 100644
--- a/library/ecp_internal_alt.h
+++ b/library/ecp_internal_alt.h
@@ -59,11 +59,7 @@
 #ifndef MBEDTLS_ECP_INTERNAL_H
 #define MBEDTLS_ECP_INTERNAL_H
 
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
+#include "mbedtls/build_info.h"
 
 #if defined(MBEDTLS_ECP_INTERNAL_ALT)