diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 1a15dfc..32d62ca 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1953,8 +1953,10 @@
         return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
     }
 
+#if defined(MBEDTLS_SSL_DEBUG_ALL)
     MBEDTLS_SSL_DEBUG_BUF( 4, "raw buffer after decryption",
                    ssl->in_msg, ssl->in_msglen );
+#endif
 
     /*
      * Authenticate if not done yet.