opus_test.go | 4 ++--

diff --git a/opus_test.go b/opus_test.go
index 3e407e36c63276726af89cab4291e24883d94f51..dfb548b1cd383ed731bc5d1211f6ee34851fb0d1 100644
--- a/opus_test.go
+++ b/opus_test.go
@@ -154,7 +154,7 @@ 		if err != nil {
 			t.Fatalf("Couldn't decode data: %v", err)
 		}
 		pcmBuffer = pcmBuffer[:n]
-		if len(pcmBuffer) != n {
+		if n != FRAME_SIZE {
 			t.Fatalf("Length mismatch: %d samples in, %d out", len(pcmBuffer), n)
 		}
 		pcm = append(pcm, pcmBuffer...)
@@ -237,7 +237,7 @@ 		if err != nil {
 			t.Fatalf("Couldn't decode data: %v", err)
 		}
 		pcmBuffer = pcmBuffer[:n]
-		if len(pcmBuffer) != n {
+		if n != FRAME_SIZE {
 			t.Fatalf("Length mismatch: %d samples in, %d out", len(pcmBuffer), n)
 		}
 		pcm = append(pcm, pcmBuffer...)