diff --git a/ospfd/ospf_routemap.c b/ospfd/ospf_routemap.c
index f9e11541fcbb..bdc65d23bf64 100644
--- a/ospfd/ospf_routemap.c
+++ b/ospfd/ospf_routemap.c
@@ -416,7 +416,7 @@ static void *route_set_metric_compile(const char *arg)
 {
 	struct ospf_metric *metric;
 
-	metric = XCALLOC(MTYPE_ROUTE_MAP_COMPILED, sizeof(uint32_t));
+	metric = XCALLOC(MTYPE_ROUTE_MAP_COMPILED, sizeof(*metric));
 	metric->used = false;
 
 	if (all_digit(arg))