diff --git a/bindings/c/tests/bdd.cpp b/bindings/c/tests/bdd.cpp
index 246dbfda1caf..1aa37f5b3e06 100644
--- a/bindings/c/tests/bdd.cpp
+++ b/bindings/c/tests/bdd.cpp
@@ -61,7 +61,7 @@ TEST_F(OpendalBddTest, FeatureTest)
         .data = (uint8_t*)this->content.c_str(),
         .len = this->content.length(),
     };
-    opendal_error* error = opendal_operator_write(this->p, this->path.c_str(), data);
+    opendal_error* error = opendal_operator_write(this->p, this->path.c_str(), &data);
     EXPECT_EQ(error, nullptr);
 
     // The blocking file "test" should exist
@@ -99,7 +99,7 @@ TEST_F(OpendalBddTest, FeatureTest)
 
     opendal_result_operator_writer writer = opendal_operator_writer(this->p, this->path.c_str());
     EXPECT_EQ(writer.error, nullptr);
-    opendal_result_writer_write w = opendal_writer_write(writer.writer, data);
+    opendal_result_writer_write w = opendal_writer_write(writer.writer, &data);
     EXPECT_EQ(w.error, nullptr);
     EXPECT_EQ(w.size, this->content.length());
     opendal_writer_free(writer.writer);
diff --git a/bindings/c/tests/list.cpp b/bindings/c/tests/list.cpp
index d4e31cf79e5b..3b64fef460b6 100644
--- a/bindings/c/tests/list.cpp
+++ b/bindings/c/tests/list.cpp
@@ -65,7 +65,7 @@ TEST_F(OpendalListTest, ListDirTest)
     };
 
     // write must succeed
-    EXPECT_EQ(opendal_operator_write(this->p, path.c_str(), data),
+    EXPECT_EQ(opendal_operator_write(this->p, path.c_str(), &data),
         nullptr);
 
     // list must succeed since the write succeeded
diff --git a/bindings/go/operator.go b/bindings/go/operator.go
index be5c50f2c750..807bcc6908fe 100644
--- a/bindings/go/operator.go
+++ b/bindings/go/operator.go
@@ -287,10 +287,10 @@ var withBytesFree = withFFI(ffiOpts{
 	rType:  &ffi.TypeVoid,
 	aTypes: []*ffi.Type{&typeBytes},
 }, func(_ context.Context, ffiCall func(rValue unsafe.Pointer, aValues ...unsafe.Pointer)) bytesFree {
-	return func(b opendalBytes) {
+	return func(b *opendalBytes) {
 		ffiCall(
 			nil,
-			b,
+			unsafe.Pointer(&b),
 		)
 	}
 })