diff --git a/library/modules/std/http.sx b/library/modules/std/http.sx
index 5802669..055397f 100644
--- a/library/modules/std/http.sx
+++ b/library/modules/std/http.sx
@@ -455,8 +455,7 @@ Server :: struct {
         // be parsed as a dot-call on a function named `handler`.)
         h := self.handler;
         resp : Response = .{};
-        req_gpa := GPA.init();
-        req_arena := Arena.init(xx req_gpa, 65536);
+        req_arena := Arena.init(self.own_alloc, 65536);
         push Context.{ allocator = xx req_arena } {
             h(@req, @resp, self.ctx);
             self.serialize_response(slot, @resp, keep);
@@ -542,8 +541,7 @@ Server :: struct {
     respond_error_close :: (self: *Server, slot: i64, status: i64) {
         resp : Response = .{ status = status, body = reason_for(status) };
         self.conns[slot].read_len = 0;
-        err_gpa := GPA.init();
-        err_arena := Arena.init(xx err_gpa, 4096);
+        err_arena := Arena.init(self.own_alloc, 4096);
         push Context.{ allocator = xx err_arena } {
             self.serialize_response(slot, @resp, false);
         }