diff --git a/src/runtime/internal/wasitest/nonblock_test.go b/src/runtime/internal/wasitest/nonblock_test.go
index 8fb2860e4b..3072b96ed8 100644
--- a/src/runtime/internal/wasitest/nonblock_test.go
+++ b/src/runtime/internal/wasitest/nonblock_test.go
@@ -37,8 +37,6 @@ func TestNonblock(t *testing.T) {
 	}
 
 	switch os.Getenv("GOWASIRUNTIME") {
-	case "wazero", "":
-		t.Skip("wazero does not support non-blocking I/O")
 	case "wasmer":
 		t.Skip("wasmer does not support non-blocking I/O")
 	}
diff --git a/src/runtime/internal/wasitest/tcpecho_test.go b/src/runtime/internal/wasitest/tcpecho_test.go
index 506e6fe40a..c56af2cc85 100644
--- a/src/runtime/internal/wasitest/tcpecho_test.go
+++ b/src/runtime/internal/wasitest/tcpecho_test.go
@@ -44,6 +44,8 @@ func TestTCPEcho(t *testing.T) {
 	subProcess.Env = append(os.Environ(), "GOOS=wasip1", "GOARCH=wasm")
 
 	switch os.Getenv("GOWASIRUNTIME") {
+	case "wazero", "":
+		subProcess.Env = append(subProcess.Env, "GOWASIRUNTIMEARGS=--listen="+host)
 	case "wasmtime":
 		subProcess.Env = append(subProcess.Env, "GOWASIRUNTIMEARGS=--tcplisten="+host)
 	default: