diff --git a/libavcodec/mss3.c b/libavcodec/mss3.c
index 37d8aee4ec..25163c660e 100644
--- a/libavcodec/mss3.c
+++ b/libavcodec/mss3.c
@@ -141,7 +141,7 @@ static const uint8_t mss3_chroma_quant[64] = {
     99, 99, 99, 99, 99, 99, 99, 99
 };
 
-const uint8_t zigzag_scan[64] = {
+static const uint8_t zigzag_scan[64] = {
     0,   1,  8, 16,  9,  2,  3, 10,
     17, 24, 32, 25, 18, 11,  4,  5,
     12, 19, 26, 33, 40, 48, 41, 34,