diff --git a/libavcodec/vorbis_dec.c b/libavcodec/vorbis_dec.c
index 284b8dfaca..3305dc156f 100644
--- a/libavcodec/vorbis_dec.c
+++ b/libavcodec/vorbis_dec.c
@@ -1146,7 +1146,7 @@ static int vorbis_floor1_decode(vorbis_context *vc,
     int_fast16_t book;
     uint_fast16_t offset;
     uint_fast16_t i,j;
-    int_fast16_t adx, ady, dx, off, predicted;
+    int_fast16_t adx, ady, dx, dy, off, predicted;
     int_fast32_t err;