diff --git a/lib/runtime/storage/trie.go b/lib/runtime/storage/trie.go
index ebd3b4b76a6..eede3103bb2 100644
--- a/lib/runtime/storage/trie.go
+++ b/lib/runtime/storage/trie.go
@@ -189,7 +189,8 @@ func (s *TrieState) DeleteChildLimit(key []byte, limit *[]byte) (
 		return 0, false, err
 	}
 
-	qtyEntries := uint32(len(tr.Entries()))
+	childTrieEntries := tr.Entries()
+	qtyEntries := uint32(len(childTrieEntries))
 	if limit == nil {
 		err = s.t.DeleteChild(key)
 		if err != nil {
@@ -200,8 +201,8 @@ func (s *TrieState) DeleteChildLimit(key []byte, limit *[]byte) (
 	}
 	limitUint := binary.LittleEndian.Uint32(*limit)
 
-	keys := make([]string, 0, len(tr.Entries()))
-	for k := range tr.Entries() {
+	keys := make([]string, 0, qtyEntries)
+	for k := range childTrieEntries {
 		keys = append(keys, k)
 	}
 	sort.Strings(keys)
diff --git a/lib/runtime/wasmer/imports_test.go b/lib/runtime/wasmer/imports_test.go
index 7061110a773..c2d0efda051 100644
--- a/lib/runtime/wasmer/imports_test.go
+++ b/lib/runtime/wasmer/imports_test.go
@@ -1502,7 +1502,7 @@ func Test_ext_default_child_storage_storage_kill_version_2_limit_all(t *testing.
 
 	child, err = inst.ctx.Storage.GetChild(testChildKey)
 	require.NoError(t, err)
-	require.Equal(t, 0, len(child.Entries()))
+	require.Empty(t, child.Entries())
 }
 
 func Test_ext_default_child_storage_storage_kill_version_2_limit_1(t *testing.T) {