diff --git a/ipn/e2e_test.go b/ipn/e2e_test.go
index 577eedda2..a2d2f7ace 100644
--- a/ipn/e2e_test.go
+++ b/ipn/e2e_test.go
@@ -193,15 +193,9 @@ type testNode struct {
 func newNode(t *testing.T, prefix string, https *httptest.Server, weirdPrefs bool) testNode {
 	t.Helper()
 
-	logfe := func(fmt string, args ...interface{}) {
-		t.Logf(prefix+".e: "+fmt, args...)
-	}
-	logfe = logger.RateLimitedFn(logfe, 1, 1, 100)
+	logfe := logger.RateLimitedFn(logger.WithPrefix(t.Logf, prefix+"e: "), 1, 1, 100)
 
-	logf := func(fmt string, args ...interface{}) {
-		t.Logf(prefix+": "+fmt, args...)
-	}
-	logf = logger.RateLimitedFn(logf, 1, 1, 100)
+	logf := logger.RateLimitedFn(logger.WithPrefix(t.Logf, prefix+": "), 1, 1, 100)
 
 	var err error
 	httpc := https.Client()