diff --git a/src/hashtable.c b/src/hashtable.c
index f4105adf6a4..a3b72b74c0c 100644
--- a/src/hashtable.c
+++ b/src/hashtable.c
@@ -1568,7 +1568,7 @@ hashtable *hashtableDefragTables(hashtable *ht, void *(*defragfn)(void *)) {
  * forked and memory won't be used again. See zmadvise_dontneed() */
 void dismissHashtable(hashtable *ht) {
     for (int i = 0; i < 2; i++) {
-        zmadvise_dontneed(ht->tables[i], numBuckets(ht->bucket_exp[i]) * sizeof(bucket *));
+        zmadvise_dontneed(ht->tables[i], numBuckets(ht->bucket_exp[i]) * sizeof(bucket));
     }
 }