diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index 5e541d0aa6..2cbafa7165 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -1225,7 +1225,7 @@ static void reverse_dc_prediction(Vp3DecodeContext *s,
      * from other INTRA blocks. There are 2 golden frame coding types;
      * blocks encoding in these modes can only predict from other blocks
      * that were encoded with these 1 of these 2 modes. */
-    unsigned char compatible_frame[8] = {
+    static const unsigned char compatible_frame[8] = {
         1,    /* MODE_INTER_NO_MV */
         0,    /* MODE_INTRA */
         1,    /* MODE_INTER_PLUS_MV */