diff --git a/crypto/x509/x509_vfy.c b/crypto/x509/x509_vfy.c
index 7a30092247..9ad9276ff7 100644
--- a/crypto/x509/x509_vfy.c
+++ b/crypto/x509/x509_vfy.c
@@ -567,7 +567,7 @@ int X509_cmp_time(ASN1_TIME *ctm, time_t *cmp_time)
 	{
 	char *str;
 	ASN1_TIME atm;
-	time_t offset;
+	long offset;
 	char buff1[24],buff2[24],*p;
 	int i,j;