diff --git a/libavcodec/utvideodec.c b/libavcodec/utvideodec.c
index 349259577b..c4a75c9a79 100644
--- a/libavcodec/utvideodec.c
+++ b/libavcodec/utvideodec.c
@@ -211,6 +211,8 @@ static void restore_median(uint8_t *src, int step, int stride,
         slice_start  = ((slice * height) / slices) & cmask;
         slice_height = ((((slice + 1) * height) / slices) & cmask) -
                        slice_start;
+        if (!slice_height)
+            continue;
 
         bsrc = src + slice_start * stride;
 
@@ -267,6 +269,8 @@ static void restore_median_il(uint8_t *src, int step, int stride,
         slice_height   = ((((slice + 1) * height) / slices) & cmask) -
                          slice_start;
         slice_height >>= 1;
+        if (!slice_height)
+            continue;
 
         bsrc = src + slice_start * stride;