diff --git a/rpc/server_test.go b/rpc/server_test.go
index a2b8af2b7f..13e723cad0 100644
--- a/rpc/server_test.go
+++ b/rpc/server_test.go
@@ -307,7 +307,7 @@ func TestServerWebsocketReadLimit(t *testing.T) {
 					t.Fatalf("expected error for request size %d with limit %d, but got none", tc.testSize, tc.readLimit)
 				}
 				// Be tolerant about the exact error surfaced by gorilla/websocket.
-				// Prefer a CloseError with code 1009, but accept ErrReadLimit or an error string containing 1009/message too big.
+				// The error text can vary across platforms when the close races the read.
 				var cerr *websocket.CloseError
 				if errors.As(err, &cerr) {
 					if cerr.Code != websocket.CloseMessageTooBig {
@@ -316,7 +316,8 @@ func TestServerWebsocketReadLimit(t *testing.T) {
 				} else if !errors.Is(err, websocket.ErrReadLimit) &&
 					!strings.Contains(strings.ToLower(err.Error()), "1009") &&
 					!strings.Contains(strings.ToLower(err.Error()), "message too big") &&
-					!strings.Contains(strings.ToLower(err.Error()), "connection reset by peer") {
+					!strings.Contains(strings.ToLower(err.Error()), "connection reset by peer") &&
+					!strings.Contains(strings.ToLower(err.Error()), "forcibly closed") {
 					// Not the error we expect from exceeding the message size limit.
 					t.Fatalf("unexpected error for read limit violation: %v", err)
 				}