diff --git a/rln/rln.go b/rln/rln.go
index bc5d617..8ce4c73 100644
--- a/rln/rln.go
+++ b/rln/rln.go
@@ -17,7 +17,12 @@ func New(depth int, parameters []byte) *RLN {
 	r := &RLN{}
 
 	buf := toBuffer(parameters)
-	C.new_circuit_from_params(C.ulong(depth), &buf, &r.ptr)
+
+	size := int(unsafe.Sizeof(buf))
+	in := (*C.Buffer)(C.malloc(C.size_t(size)))
+	*in = buf
+
+	C.new_circuit_from_params(C.ulong(depth), in, &r.ptr)
 
 	return r
 }
diff --git a/rln/rln_test.go b/rln/rln_test.go
index be1cd0e..2cb3052 100644
--- a/rln/rln_test.go
+++ b/rln/rln_test.go
@@ -1,10 +1,19 @@
 package rln
 
 import (
+	"io/ioutil"
 	"testing"
 )
 
-func TestHash(t *testing.T) {
-	rln := New(0, []byte{})
-	rln.Hash([]byte{1, 2, 3})
+func TestNew(t *testing.T) {
+	params, err := ioutil.ReadFile("./testdata/parameters.key")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	rln := New(32, params)
+
+	if rln.ptr == nil {
+		t.Fatal("pointer not initialized.")
+	}
 }
diff --git a/rln/testdata/parameters.key b/rln/testdata/parameters.key
new file mode 100644
index 0000000..8691479
Binary files /dev/null and b/rln/testdata/parameters.key differ