diff --git a/include/certfp.h b/include/certfp.h
new file mode 100644
index 000000000..0913cade4
--- /dev/null
+++ b/include/certfp.h
@@ -0,0 +1,38 @@
+/*
+ *  charybdis: A useful ircd.
+ *  certpf.h: Fingerprint method strings
+ *
+ *  Copyright 2016 Simon Arlott
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *  USA
+ */
+
+#ifndef INCLUDED_certfp_h
+#define INCLUDED_certfp_h
+
+#define CERTFP_NAME_CERT_SHA1		"sha1"
+#define CERTFP_PREFIX_CERT_SHA1		""
+#define CERTFP_NAME_CERT_SHA256		"sha256"
+#define CERTFP_PREFIX_CERT_SHA256	""
+#define CERTFP_NAME_CERT_SHA512		"sha512"
+#define CERTFP_PREFIX_CERT_SHA512	""
+/* These prefixes are copied from RFC 7218 */
+#define CERTFP_NAME_SPKI_SHA256		"spki_sha256"
+#define CERTFP_PREFIX_SPKI_SHA256	"SPKI:SHA2-256:"
+#define CERTFP_NAME_SPKI_SHA512		"spki_sha512"
+#define CERTFP_PREFIX_SPKI_SHA512	"SPKI:SHA2-512:"
+
+#endif /* INCLUDED_certfp_h */
diff --git a/ircd/newconf.c b/ircd/newconf.c
index c4c9ee08e..65cc12434 100644
--- a/ircd/newconf.c
+++ b/ircd/newconf.c
@@ -28,6 +28,7 @@
 #include "wsproc.h"
 #include "privilege.h"
 #include "chmode.h"
+#include "certfp.h"
 
 #define CF_TYPE(x) ((x) & CF_MTYPE)
 
@@ -1717,15 +1718,15 @@ conf_set_general_certfp_method(void *data)
 {
 	char *method = data;
 
-	if (!rb_strcasecmp(method, "sha1"))
+	if (!rb_strcasecmp(method, CERTFP_NAME_CERT_SHA1))
 		ConfigFileEntry.certfp_method = RB_SSL_CERTFP_METH_CERT_SHA1;
-	else if (!rb_strcasecmp(method, "sha256"))
+	else if (!rb_strcasecmp(method, CERTFP_NAME_CERT_SHA256))
 		ConfigFileEntry.certfp_method = RB_SSL_CERTFP_METH_CERT_SHA256;
-	else if (!rb_strcasecmp(method, "sha512"))
+	else if (!rb_strcasecmp(method, CERTFP_NAME_CERT_SHA512))
 		ConfigFileEntry.certfp_method = RB_SSL_CERTFP_METH_CERT_SHA512;
-	else if (!rb_strcasecmp(method, "spki_sha256"))
+	else if (!rb_strcasecmp(method, CERTFP_NAME_SPKI_SHA256))
 		ConfigFileEntry.certfp_method = RB_SSL_CERTFP_METH_SPKI_SHA256;
-	else if (!rb_strcasecmp(method, "spki_sha512"))
+	else if (!rb_strcasecmp(method, CERTFP_NAME_SPKI_SHA512))
 		ConfigFileEntry.certfp_method = RB_SSL_CERTFP_METH_SPKI_SHA512;
 	else
 	{
diff --git a/ircd/sslproc.c b/ircd/sslproc.c
index 8780e1ac4..f4b8016a2 100644
--- a/ircd/sslproc.c
+++ b/ircd/sslproc.c
@@ -33,6 +33,7 @@
 #include "client.h"
 #include "send.h"
 #include "packet.h"
+#include "certfp.h"
 
 #define ZIPSTATS_TIME           60
 
@@ -499,17 +500,19 @@ ssl_process_certfp(ssl_ctl_t * ctl, ssl_ctl_buf_t * ctl_buf)
 
 	switch (certfp_method) {
 	case RB_SSL_CERTFP_METH_CERT_SHA1:
-	case RB_SSL_CERTFP_METH_CERT_SHA256:
-	case RB_SSL_CERTFP_METH_CERT_SHA512:
-		method_string = "";
+		method_string = CERTFP_PREFIX_CERT_SHA1;
+		break;
+	case RB_SSL_CERTFP_METH_CERT_SHA256:
+		method_string = CERTFP_PREFIX_CERT_SHA256;
+		break;
+	case RB_SSL_CERTFP_METH_CERT_SHA512:
+		method_string = CERTFP_PREFIX_CERT_SHA512;
 		break;
-
-	/* These names are copied from RFC 7218 */
 	case RB_SSL_CERTFP_METH_SPKI_SHA256:
-		method_string = "SPKI:SHA2-256:";
+		method_string = CERTFP_PREFIX_SPKI_SHA256;
 		break;
 	case RB_SSL_CERTFP_METH_SPKI_SHA512:
-		method_string = "SPKI:SHA2-512:";
+		method_string = CERTFP_PREFIX_SPKI_SHA512;
 		break;
 	default:
 		return;