diff --git a/examples/queue.c b/examples/queue.c
index e81ac72..cfac7e8 100644
--- a/examples/queue.c
+++ b/examples/queue.c
@@ -19,7 +19,7 @@ int main(int argc, char **argv) {
 
     printf("%s\n", message);
 
-    skipstone_queue_destroy(queue, NULL);
+    skipstone_queue_destroy(queue);
 
     return 0;
 }
diff --git a/examples/queue.c-e b/examples/queue.c-e
index e81ac72..cfac7e8 100644
--- a/examples/queue.c-e
+++ b/examples/queue.c-e
@@ -19,7 +19,7 @@ int main(int argc, char **argv) {
 
     printf("%s\n", message);
 
-    skipstone_queue_destroy(queue, NULL);
+    skipstone_queue_destroy(queue);
 
     return 0;
 }