diff --git a/library/ssl_tls13_keys.c b/library/ssl_tls13_keys.c
index 9b775ec..d79e70c 100644
--- a/library/ssl_tls13_keys.c
+++ b/library/ssl_tls13_keys.c
@@ -13,7 +13,7 @@
 #include <string.h>
 
 #include "mbedtls/hkdf.h"
-#include "mbedtls/debug.h"
+#include "debug_internal.h"
 #include "mbedtls/error.h"
 #include "mbedtls/platform.h"