diff --git a/libfreerdp/core/certificate.c b/libfreerdp/core/certificate.c
index cf787c785..358f30589 100644
--- a/libfreerdp/core/certificate.c
+++ b/libfreerdp/core/certificate.c
@@ -348,14 +348,15 @@ static rdpX509CertChain* certificate_new_x509_certificate_chain(UINT32 count)
 
 static void certificate_free_x509_certificate_chain(rdpX509CertChain* x509_cert_chain)
 {
-	int i;
+	UINT32 i;
 
 	if (!x509_cert_chain)
 		return;
 
-	for (i = 0; i < (int)x509_cert_chain->count; i++)
+	for (i = 0; i < x509_cert_chain->count; i++)
 	{
-		free(x509_cert_chain->array[i].data);
+		struct rdp_CertBlob* element = &x509_cert_chain->array[i];
+		free(element->data);
 	}
 
 	free(x509_cert_chain->array);