diff --git a/radio/tests/interpolation/farrow/test.cpp b/radio/tests/interpolation/farrow/test.cpp
index 80da799..0df7b2e 100644
--- a/radio/tests/interpolation/farrow/test.cpp
+++ b/radio/tests/interpolation/farrow/test.cpp
@@ -149,10 +149,11 @@ void test()
 	size_t remain = iq_in.size();
 	const size_t BLOCKSIZE=1024;
 
-	IBuffer *buf_in = farrow.buffer_in();
-	auto farrow_buf_in = dynamic_cast<Buffer<ComplexScalar>*>(buf_in);
-	auto farrow_buf_out = new Buffer<ComplexScalar>(BLOCKSIZE);
+	// Get input buffer from Farrow Block
+	auto farrow_buf_in = dynamic_cast<Buffer<ComplexScalar>*>(farrow.buffer_in());
 
+	// Create output buffer for Farrow Block
+	auto farrow_buf_out = new Buffer<ComplexScalar>(BLOCKSIZE);
 	farrow.buffer_out_add(farrow_buf_out);
 
 	while(remain)