diff --git a/libavcodec/bethsoftvideo.c b/libavcodec/bethsoftvideo.c
index 9491abd19e..b316535491 100644
--- a/libavcodec/bethsoftvideo.c
+++ b/libavcodec/bethsoftvideo.c
@@ -52,7 +52,7 @@ static void set_palette(AVFrame * frame, const uint8_t * palette_buffer)
     uint32_t * palette = (uint32_t *)frame->data[1];
     int a;
     for(a = 0; a < 256; a++){
-        palette[a] = AV_RB24(&palette_buffer[a * 3]) * 4;
+        palette[a] = 0xFF << 24 | AV_RB24(&palette_buffer[a * 3]) * 4;
     }
     frame->palette_has_changed = 1;
 }