diff --git a/libavcodec/scpr.c b/libavcodec/scpr.c
index 5714e25170..297fb315e2 100644
--- a/libavcodec/scpr.c
+++ b/libavcodec/scpr.c
@@ -781,7 +781,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                            s->current_frame->linesize[0] / 4);
     } else if (type == 17) {
         uint32_t clr, *dst = (uint32_t *)s->current_frame->data[0];
-        int x, y;
+        int y;
 
         frame->key_frame = 1;
         bytestream2_skip(gb, 1);
@@ -797,9 +797,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
             clr = bytestream2_get_le24(gb);
         }
         for (y = 0; y < avctx->height; y++) {
-            for (x = 0; x < avctx->width; x++) {
-                dst[x] = clr;
-            }
+            dst[0] = clr;
+            av_memcpy_backptr((uint8_t*)(dst+1), 4, 4*avctx->width - 4);
             dst += s->current_frame->linesize[0] / 4;
         }
     } else if (type == 0 || type == 1) {