diff --git a/kdc/config.c b/kdc/config.c
index bd92c3257..0651757b2 100644
--- a/kdc/config.c
+++ b/kdc/config.c
@@ -411,7 +411,7 @@ configure(krb5_context context, int argc, char **argv)
 	if (digests == NULL)
 	    digests = "ntlm-v2";
 	config->digests_allowed = parse_flags(digests,
-					      digestunits,
+					      _kdc_digestunits,
 					      0);
 	if (config->digests_allowed == -1) {
 	    kdc_log(context, config, 0,
diff --git a/kdc/digest.c b/kdc/digest.c
index c814c24de..8be44b965 100644
--- a/kdc/digest.c
+++ b/kdc/digest.c
@@ -43,7 +43,7 @@ RCSID("$Id$");
 #define NTLM_V1_SESSION	0x02
 #define NTLM_V1		0x01
 
-const struct units digestunits[] = {
+const struct units _kdc_digestunits[] = {
 	{"chap-md5",		1U << 4},
 	{"digest-md5",		1U << 3},
 	{"ntlm-v2",		1U << 2},
diff --git a/kdc/kdc_locl.h b/kdc/kdc_locl.h
index c8676a9de..8efbe8d2e 100644
--- a/kdc/kdc_locl.h
+++ b/kdc/kdc_locl.h
@@ -55,7 +55,7 @@ extern int enable_http;
 
 extern int detach_from_console;
 
-extern const struct units digestunits[];
+extern const struct units _kdc_digestunits[];
 
 #define _PATH_KDC_CONF		HDB_DB_DIR "/kdc.conf"
 #define DEFAULT_LOG_DEST	"0-1/FILE:" HDB_DB_DIR "/kdc.log"