check: fix SNMP test format error

diff --git a/tests/check_snmp.c b/tests/check_snmp.c
index f05cdce3b5dd3d379d751371f27a1e2ce6638811..08fd864fc2a07dd608c3b487a63d30ef1ce4da0c 100644 (file)
--- a/tests/check_snmp.c
+++ b/tests/check_snmp.c
@@ -333,7 +333,8 @@ snmp_oidrepr(oid *name, size_t namelen)
        for (i = 0; i < namelen; i++) {
                /* Not very efficient... */
                char *newbuffer = NULL;
-               if (asprintf(&newbuffer, "%s.%lu", buffer[current]?buffer[current]:"", name[i]) == -1) {
+               if (asprintf(&newbuffer, "%s.%lu", buffer[current]?buffer[current]:"",
+                       (unsigned long)name[i]) == -1) {
                        free(buffer[current]);
                        buffer[current] = NULL;
                        return NULL;