diff --git a/libopendmarc/opendmarc_spf.c b/libopendmarc/opendmarc_spf.c
index 66833a5..567896d 100644
--- a/libopendmarc/opendmarc_spf.c
+++ b/libopendmarc/opendmarc_spf.c
@@ -112,6 +112,7 @@ opendmarc_spf2_specify_ip_address(SPF_CTX_T *spfctx, char *ip_address, size_t ip
 	/*
 	 * we don't care at this point if it is ipv6 or ipv4
 	 */
+	SPF_request_set_ipv4_str(spfctx->spf_request, ip_address);
 	SPF_request_set_ipv6_str(spfctx->spf_request, ip_address);
 	return 0;
 }