diff --git a/receive_stream.go b/receive_stream.go
index 9f06f21f..040e067c 100644
--- a/receive_stream.go
+++ b/receive_stream.go
@@ -132,6 +132,7 @@ func (s *receiveStream) readImpl(p []byte) (bool /*stream completed */, int, err
 				}
 				if deadlineTimer == nil {
 					deadlineTimer = utils.NewTimer()
+					defer deadlineTimer.Stop()
 				}
 				deadlineTimer.Reset(deadline)
 			}
diff --git a/send_stream.go b/send_stream.go
index 6c71f0b8..ba6e0a34 100644
--- a/send_stream.go
+++ b/send_stream.go
@@ -137,6 +137,7 @@ func (s *sendStream) Write(p []byte) (int, error) {
 				}
 				if deadlineTimer == nil {
 					deadlineTimer = utils.NewTimer()
+					defer deadlineTimer.Stop()
 				}
 				deadlineTimer.Reset(deadline)
 			}