diff --git a/mxqd.c b/mxqd.c
index bfc4c86f..c54e0369 100644
--- a/mxqd.c
+++ b/mxqd.c
@@ -1720,7 +1720,6 @@ static int killall_over_memory(struct ppidcache *ppidcache, struct mxq_server *s
     struct mx_proc_tree *ptree = NULL;
     struct mx_proc_info *pinfo;
 
-    long pagesize;
     int res;
 
     assert(server);
@@ -1731,12 +1730,6 @@ static int killall_over_memory(struct ppidcache *ppidcache, struct mxq_server *s
     /* limit killing to every >= 10 seconds */
     mx_within_rate_limit_or_return(10, 0);
 
-    pagesize = sysconf(_SC_PAGESIZE);
-    if (!pagesize) {
-        mx_log_warning("killall_over_memory(): Can't get _SC_PAGESIZE. Assuming 4096.");
-        pagesize = 4096;
-    }
-
     res = mx_proc_tree(&ptree);
     if (res < 0) {
         mx_log_err("killall_over_memory(): Reading process tree failed: %m");