diff --git a/src/meta/ps2_vpk.c b/src/meta/ps2_vpk.c
index 8709809d..dd11030d 100644
--- a/src/meta/ps2_vpk.c
+++ b/src/meta/ps2_vpk.c
@@ -42,7 +42,7 @@ VGMSTREAM * init_vgmstream_ps2_vpk(STREAMFILE *streamFile) {
         vgmstream->loop_end_sample = vgmstream->num_samples;
     }
 
-    vgmstream->interleave_block_size = read_32bitLE(0x0C,streamFile)/vgmstream->channels;
+    vgmstream->interleave_block_size = read_32bitLE(0x0C,streamFile)/2;
     vgmstream->layout_type = layout_interleave;
     vgmstream->meta_type = meta_PS2_VPK;