diff --git a/src/dec/vp8l.c b/src/dec/vp8l.c
index 34ebd8c0..d347bf1c 100644
--- a/src/dec/vp8l.c
+++ b/src/dec/vp8l.c
@@ -139,7 +139,8 @@ static WEBP_INLINE int PlaneCodeToDistance(int xsize, int plane_code) {
     const int dist_code = code_to_plane_lut[plane_code - 1];
     const int yoffset = dist_code >> 4;
     const int xoffset = 8 - (dist_code & 0xf);
-    return yoffset * xsize + xoffset;
+    int dist = yoffset * xsize + xoffset;
+    return (dist >= 1) ? dist : 1;
   }
 }