diff --git a/AltSign/Model/Apple API/ALTCertificateRequest.m b/AltSign/Model/Apple API/ALTCertificateRequest.m
index 9d5bf10..d1e25da 100644
--- a/AltSign/Model/Apple API/ALTCertificateRequest.m	
+++ b/AltSign/Model/Apple API/ALTCertificateRequest.m	
@@ -88,7 +88,7 @@ - (void)generateRequest:(NSData **)outputRequest privateKey:(NSData **)outputPri
     const char *commonName = "AltSign";
     
     request = X509_REQ_new();
-    if (X509_REQ_set_version(request, 1) != 1)
+    if (X509_REQ_set_version(request, 0) != 1)
     {
         finish();
         return;