diff --git a/src/vgmstream.c b/src/vgmstream.c
index 4cbb8409..a86e11be 100644
--- a/src/vgmstream.c
+++ b/src/vgmstream.c
@@ -3386,6 +3386,9 @@ int get_vgmstream_average_bitrate(VGMSTREAM * vgmstream)
     int length_samples = vgmstream->num_samples;
     int channels = get_vgmstream_channel_count(vgmstream);
     STREAMFILE * streamFile;
+
+	if (!sample_rate || !channels || !length_samples)
+		return 0;
     
     if (channels >= 1) {
         streamFile = get_vgmstream_streamfile(vgmstream, 0);