diff --git a/src/runtime/internal/wasitest/tcpecho_test.go b/src/runtime/internal/wasitest/tcpecho_test.go
index c56af2cc85d..c15da86f35e 100644
--- a/src/runtime/internal/wasitest/tcpecho_test.go
+++ b/src/runtime/internal/wasitest/tcpecho_test.go
@@ -44,9 +44,9 @@ func TestTCPEcho(t *testing.T) {
 	subProcess.Env = append(os.Environ(), "GOOS=wasip1", "GOARCH=wasm")
 
 	switch os.Getenv("GOWASIRUNTIME") {
-	case "wazero", "":
+	case "wazero":
 		subProcess.Env = append(subProcess.Env, "GOWASIRUNTIMEARGS=--listen="+host)
-	case "wasmtime":
+	case "wasmtime", "":
 		subProcess.Env = append(subProcess.Env, "GOWASIRUNTIMEARGS=--tcplisten="+host)
 	default:
 		t.Skip("WASI runtime does not support sockets")