diff --git a/libavcodec/cavs.c b/libavcodec/cavs.c
index 40bb63a278..ba2b6ef232 100644
--- a/libavcodec/cavs.c
+++ b/libavcodec/cavs.c
@@ -537,8 +537,7 @@ void ff_cavs_inter(AVSContext *h, enum cavs_mb mb_type)
 static inline void scale_mv(AVSContext *h, int *d_x, int *d_y,
                             cavs_vector *src, int distp)
 {
-    int den = h->scale_den[FFMAX(src->ref, 0)];
-
+    int64_t den = h->scale_den[FFMAX(src->ref, 0)];
     *d_x = (src->x * distp * den + 256 + FF_SIGNBIT(src->x)) >> 9;
     *d_y = (src->y * distp * den + 256 + FF_SIGNBIT(src->y)) >> 9;
 }