3 files changed, 3 insertions, 3 deletions
diff --git a/misc/examples/coroutines/cotasks1.c b/misc/examples/coroutines/cotasks1.c
index 7df4eb34..db9632e6 100644
--- a/misc/examples/coroutines/cotasks1.c
+++ b/misc/examples/coroutines/cotasks1.c
@@ -43,7 +43,7 @@ struct produce_items {
 int produce_items(struct produce_items* p)
 {
     cco_routine (p) {
-        p->str = cstr_null;
+        p->str = cstr_init();
         while (true)
         {
             cco_await(next_value(&p->next) != CCO_AWAIT);
diff --git a/misc/examples/coroutines/cotasks2.c b/misc/examples/coroutines/cotasks2.c
index f6257a7e..12c2c4a3 100644
--- a/misc/examples/coroutines/cotasks2.c
+++ b/misc/examples/coroutines/cotasks2.c
@@ -41,7 +41,7 @@ cco_task_struct (produce_items,
 int produce_items(struct produce_items* p, cco_runtime* rt)
 {
     cco_routine (p) {
-        p->str = cstr_null;
+        p->str = cstr_init();
         p->next.cco_func = next_value;
         while (true)
         {
diff --git a/misc/examples/coroutines/filetask.c b/misc/examples/coroutines/filetask.c
index 74388359..9650cb60 100644
--- a/misc/examples/coroutines/filetask.c
+++ b/misc/examples/coroutines/filetask.c
@@ -17,7 +17,7 @@ int file_read(struct file_read* co, cco_runtime* rt)
 {
     cco_routine (co) {
         co->fp = fopen(co->path, "r");
-        co->line = cstr_null;
+        co->line = cstr_init();
 
         while (true) {
             // emulate async io: await 10ms per line