diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index 074a4aaf1e..e406b0f3b9 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -999,12 +999,12 @@ err:
  * which must copy from the backing file)
  */
 static int count_cow_clusters(BDRVQcow2State *s, int nb_clusters,
-    uint64_t *l2_table, int l2_index)
+    uint64_t *l2_slice, int l2_index)
 {
     int i;
 
     for (i = 0; i < nb_clusters; i++) {
-        uint64_t l2_entry = be64_to_cpu(l2_table[l2_index + i]);
+        uint64_t l2_entry = be64_to_cpu(l2_slice[l2_index + i]);
         QCow2ClusterType cluster_type = qcow2_get_cluster_type(l2_entry);
 
         switch(cluster_type) {