diff --git a/libavcodec/vorbis_enc.c b/libavcodec/vorbis_enc.c
index 9ace0dc149..bc4bef24f1 100644
--- a/libavcodec/vorbis_enc.c
+++ b/libavcodec/vorbis_enc.c
@@ -243,12 +243,12 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
     cb->quantlist = NULL;
     ready_codebook(cb);
 
-    // codebook 1 - residue classbook, values 0..1, dimentions 200
+    // codebook 1 - residue classbook, values 0..1, dimentions 4
     cb = &venc->codebooks[1];
     cb->nentries = 2;
     cb->entries = av_malloc(sizeof(cb_entry_t) * cb->nentries);
     for (i = 0; i < cb->nentries; i++) cb->entries[i].len = 1;
-    cb->ndimentions = 200;
+    cb->ndimentions = 4;
     cb->min = 0.;
     cb->delta = 0.;
     cb->seq_p = 0;