diff --git a/pkg/tcpip/transport/tcp/test/e2e/BUILD b/pkg/tcpip/transport/tcp/test/e2e/BUILD
index 5355d6fae..71f1fc14d 100644
--- a/pkg/tcpip/transport/tcp/test/e2e/BUILD
+++ b/pkg/tcpip/transport/tcp/test/e2e/BUILD
@@ -164,6 +164,9 @@ go_test(
     name = "tcp_noracedetector_test",
     size = "small",
     srcs = ["tcp_noracedetector_test.go"],
+    # These tests can be extremely slow/flaky when run under gotsan,
+    # so exclude them from gotsan runs.
+    tags = ["nogotsan"],
     deps = [
         ":e2e",
         "//pkg/refs",
diff --git a/pkg/tcpip/transport/tcp/test/e2e/tcp_noracedetector_test.go b/pkg/tcpip/transport/tcp/test/e2e/tcp_noracedetector_test.go
index 01d9523ad..0a68b6d9d 100644
--- a/pkg/tcpip/transport/tcp/test/e2e/tcp_noracedetector_test.go
+++ b/pkg/tcpip/transport/tcp/test/e2e/tcp_noracedetector_test.go
@@ -15,9 +15,6 @@
 // These tests are flaky when run under the go race detector due to some
 // iterations taking long enough that the retransmit timer can kick in causing
 // the congestion window measurements to fail due to extra packets etc.
-//
-//go:build !race
-// +build !race
 
 package tcp_noracedetector_test