diff --git a/pimd/pim_static.c b/pimd/pim_static.c
index e43c59a..cbbcaaa 100644
--- a/pimd/pim_static.c
+++ b/pimd/pim_static.c
@@ -42,7 +42,7 @@
 
    s_route = XCALLOC(MTYPE_PIM_STATIC_ROUTE, sizeof(*s_route));
    if (!s_route) {
-     zlog_err("PIM XCALLOC(%u) failure", sizeof(*s_route));
+     zlog_err("PIM XCALLOC(%zu) failure", sizeof(*s_route));
      return 0;
    }
    return s_route;