diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 64012e5..5a81f8b 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -880,7 +880,7 @@
     /*
      * Always compute the MAC (RFC4346, CBCTIME).
      */
-    if( ssl->in_msglen <= ssl->maclen + padlen )
+    if( ssl->in_msglen < ssl->maclen + padlen )
     {
         SSL_DEBUG_MSG( 1, ( "msglen (%d) < maclen (%d) + padlen (%d)",
                     ssl->in_msglen, ssl->maclen, padlen ) );