diff --git a/src/filter.c b/src/filter.c
index 74f84910..03f03a53 100644
--- a/src/filter.c
+++ b/src/filter.c
@@ -398,11 +398,12 @@ void filter_deblock_cu(const encoder_control * const encoder, int32_t x, int32_t
 
   // split 64x64, on split flag and on border
   if (depth == 0 || split_flag || border) {
+    // Split the four sub-blocks of this block recursively.
+    uint8_t change = 1 << (MAX_DEPTH - 1 - depth);
+
     // Tell clang-analyzer that everything is ok.
     assert(depth >= 0 && depth < MAX_DEPTH);
 
-    // Split the four sub-blocks of this block recursively.
-    uint8_t change = 1 << (MAX_DEPTH - 1 - depth);
     filter_deblock_cu(encoder, x, y, depth + 1, edge);
     if(!border_x || border_split_x) {
       filter_deblock_cu(encoder, x + change, y, depth + 1, edge);