diff --git a/pipi/filter/median.c b/pipi/filter/median.c
index 029ca9c..e338552 100644
--- a/pipi/filter/median.c
+++ b/pipi/filter/median.c
@@ -134,10 +134,10 @@ pipi_image_t *pipi_median_ext(pipi_image_t *src, int rx, int ry)
             }
             else
             {
-                dstdata[4 * (y * w + x)] = list[size / 8 * 4];
-                dstdata[4 * (y * w + x) + 1] = list[size / 8 * 4 + 1];
-                dstdata[4 * (y * w + x) + 2] = list[size / 8 * 4 + 2];
-                dstdata[4 * (y * w + x) + 3] = list[size / 8 * 4 + 3];
+                dstdata[4 * (y * w + x)] = list[size / 2 * 4];
+                dstdata[4 * (y * w + x) + 1] = list[size / 2 * 4 + 1];
+                dstdata[4 * (y * w + x) + 2] = list[size / 2 * 4 + 2];
+                dstdata[4 * (y * w + x) + 3] = list[size / 2 * 4 + 3];
             }
         }
     }