diff --git a/MokManager.c b/MokManager.c
index ebc85db..e0ba789 100644
--- a/MokManager.c
+++ b/MokManager.c
@@ -379,14 +379,14 @@ static void show_x509_info (X509 *X509Cert, UINT8 *hash)
 			fields++;
 	}
 
-	time = X509_get_notBefore(X509Cert);
+	time = X509_getm_notBefore(X509Cert);
 	if (time) {
 		from = get_x509_time(time);
 		if (from)
 			fields++;
 	}
 
-	time = X509_get_notAfter(X509Cert);
+	time = X509_getm_notAfter(X509Cert);
 	if (time) {
 		until = get_x509_time(time);
 		if (until)