diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index a72f770..8697c53 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -2117,10 +2117,11 @@
     extensions_len = MBEDTLS_GET_UINT16_BE(p, 0);
     p += 2;
 
-    MBEDTLS_SSL_DEBUG_BUF(3, "encrypted extensions", p, extensions_len);
     MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, extensions_len);
     extensions_end = p + extensions_len;
 
+    MBEDTLS_SSL_DEBUG_BUF(3, "encrypted extensions", p, extensions_len);
+
     handshake->received_extensions = MBEDTLS_SSL_EXT_MASK_NONE;
 
     while (p < extensions_end) {