diff --git a/lib/gssapi/krb5/test_cred.c b/lib/gssapi/krb5/test_cred.c
index e658a9e51..a7feb49fa 100644
--- a/lib/gssapi/krb5/test_cred.c
+++ b/lib/gssapi/krb5/test_cred.c
@@ -143,6 +143,7 @@ main(int argc, char **argv)
     gss_name_t name;
     int optind = 0;
 
+    setprogname(argv[0]);
     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
 	usage(1);
     
diff --git a/lib/gssapi/test_cred.c b/lib/gssapi/test_cred.c
index e658a9e51..a7feb49fa 100644
--- a/lib/gssapi/test_cred.c
+++ b/lib/gssapi/test_cred.c
@@ -143,6 +143,7 @@ main(int argc, char **argv)
     gss_name_t name;
     int optind = 0;
 
+    setprogname(argv[0]);
     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
 	usage(1);