diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07321562..a5f7227e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ Changelog for NeoFS Node
 ### Changed
 
 ### Fixed
+- Panic on write-cache's `Delete` operation (#1664)
 
 ### Removed
 
diff --git a/pkg/local_object_storage/writecache/delete.go b/pkg/local_object_storage/writecache/delete.go
index 4302e16e..61973c6f 100644
--- a/pkg/local_object_storage/writecache/delete.go
+++ b/pkg/local_object_storage/writecache/delete.go
@@ -26,9 +26,9 @@ func (c *cache) Delete(addr oid.Address) error {
 	c.mtx.Lock()
 	for i := range c.mem {
 		if saddr == c.mem[i].addr {
+			c.curMemSize -= uint64(len(c.mem[i].data))
 			copy(c.mem[i:], c.mem[i+1:])
 			c.mem = c.mem[:len(c.mem)-1]
-			c.curMemSize -= uint64(len(c.mem[i].data))
 			c.mtx.Unlock()
 			storagelog.Write(c.log, storagelog.AddressField(saddr), storagelog.OpField("in-mem DELETE"))
 			return nil