diff --git a/codersdk/workspacesdk/agentconn_test.go b/codersdk/workspacesdk/agentconn_test.go
index c77cbae3ce..a2cce9d5cd 100644
--- a/codersdk/workspacesdk/agentconn_test.go
+++ b/codersdk/workspacesdk/agentconn_test.go
@@ -243,7 +243,9 @@ func stitchTailnet(t *testing.T, conns map[uuid.UUID]*tailnet.Conn) {
 				Node: protoNode,
 				Kind: proto.CoordinateResponse_PeerUpdate_NODE,
 			}})
-			assert.NoError(t, err)
+			if err != nil && !errors.Is(err, tailnet.ErrConnClosed) {
+				assert.NoError(t, err)
+			}
 		}
 	}
 
diff --git a/tailnet/conn_test.go b/tailnet/conn_test.go
index 7e8ac53474..b2c9cd575e 100644
--- a/tailnet/conn_test.go
+++ b/tailnet/conn_test.go
@@ -2,6 +2,7 @@ package tailnet_test
 
 import (
 	"context"
+	"errors"
 	"net"
 	"net/netip"
 	"strings"
@@ -483,7 +484,9 @@ func stitch(t *testing.T, dst, src *tailnet.Conn) {
 			Node: pn,
 			Kind: proto.CoordinateResponse_PeerUpdate_NODE,
 		}})
-		assert.NoError(t, err)
+		if err != nil && !errors.Is(err, tailnet.ErrConnClosed) {
+			assert.NoError(t, err)
+		}
 	})
 	// ensures we don't send callbacks after the test ends and connections are closed.
 	t.Cleanup(func() {