diff --git a/spec/helpers/tcp_gate_scheduler.rb b/spec/helpers/tcp_gate_scheduler.rb
index aff25996c..c16163d15 100644
--- a/spec/helpers/tcp_gate_scheduler.rb
+++ b/spec/helpers/tcp_gate_scheduler.rb
@@ -155,7 +155,6 @@ def write( transfer_until: )
 						end
 						break if @transfer_until != :eof && (!read_str || read_str.bytesize < len)
 					end
-					@until_writeable = false
 					@pending_write = false
 				end