diff --git a/cgroup.c b/cgroup.c
index defeb1df767a6136c3bd5a30c863e1d5a85730cc..6fe4bdbecb9f0aa60e8a85e233ccd23e31c879c7 100644
--- a/cgroup.c
+++ b/cgroup.c
@@ -122,7 +122,7 @@ cgroup_get_mem_limit(const char *chier, const char *cgroup)
 		return -1;
 	}
 	size_t nlimit = 0;
-	fscanf(limit, "%zu", &nlimit); /* FIXME is this really unsigned? */
+	fscanf(limit, "%zu", &nlimit);
 	fclose(limit);
 	return nlimit;
 }