diff --git a/ssl/tls1.c b/ssl/tls1.c
index e95d5eb18..800decbaa 100755
--- a/ssl/tls1.c
+++ b/ssl/tls1.c
@@ -342,7 +342,7 @@ int add_cert(SSL_CTX *ssl_ctx, const uint8_t *buf, int len)
     X509_CTX *cert = NULL;
     int offset;
 
-    while (ssl_ctx->certs[i].buf && i < CONFIG_SSL_MAX_CERTS) 
+    while (i < CONFIG_SSL_MAX_CERTS && ssl_ctx->certs[i].buf) 
         i++;
 
     if (i == CONFIG_SSL_MAX_CERTS) /* too many certs */