diff --git a/libavcodec/mdec.c b/libavcodec/mdec.c
index e0281ef16a..762c306cd1 100644
--- a/libavcodec/mdec.c
+++ b/libavcodec/mdec.c
@@ -45,8 +45,6 @@ typedef struct MDECContext{
     int mb_height;
     int mb_x, mb_y;
     DECLARE_ALIGNED_16(DCTELEM, block[6][64]);
-    DECLARE_ALIGNED_8(uint16_t, intra_matrix[64]);
-    DECLARE_ALIGNED_8(int, q_intra_matrix[64]);
     uint8_t *bitstream_buffer;
     unsigned int bitstream_buffer_size;
     int block_last_index[6];