diff --git a/core/include/thread.h b/core/include/thread.h
index cc414c9fb7..57a8dbacd6 100644
--- a/core/include/thread.h
+++ b/core/include/thread.h
@@ -640,8 +640,8 @@ static inline const char *thread_get_name(const thread_t *thread)
 /**
  * @brief       Measures the stack usage of a stack
  *
- * @pre         Only works if the thread was created with the flag
- *              `THREAD_CREATE_STACKTEST`.
+ * @pre         Does not work if the thread was created with the flag
+ *              `THREAD_CREATE_NO_STACKTEST`.
  *
  * @param[in] thread    The thread to measure the stack of
  *
diff --git a/sys/net/application_layer/gcoap/forward_proxy_thread.c b/sys/net/application_layer/gcoap/forward_proxy_thread.c
index b3e725c8fc..5d512f7233 100644
--- a/sys/net/application_layer/gcoap/forward_proxy_thread.c
+++ b/sys/net/application_layer/gcoap/forward_proxy_thread.c
@@ -57,7 +57,7 @@ static void *_forward_proxy_thread_start(void *arg)
 void gcoap_forward_proxy_thread_init(void)
 {
     forward_proxy_pid = thread_create(_forward_proxy_thread, sizeof(_forward_proxy_thread),
-                                       THREAD_PRIORITY_MAIN - 1, THREAD_CREATE_STACKTEST,
+                                       THREAD_PRIORITY_MAIN - 1, 0,
                                        _forward_proxy_thread_start, NULL, "gcoap proxy");
     if (forward_proxy_pid <= KERNEL_PID_UNDEF) {
         DEBUG_PUTS("gcoap_forward_proxy_thread_init(): thread_create failed\n");
diff --git a/tests/sys/shell/main.c b/tests/sys/shell/main.c
index 146ab4d7ae..8fa8fb3e6f 100644
--- a/tests/sys/shell/main.c
+++ b/tests/sys/shell/main.c
@@ -130,7 +130,7 @@ static int print_periodic(int argc, char **argv)
 
     _periodic_ctx.period_ms = 500;
 
-    thread_create(_stack, sizeof(_stack), THREAD_PRIORITY_MAIN, THREAD_CREATE_STACKTEST,
+    thread_create(_stack, sizeof(_stack), THREAD_PRIORITY_MAIN, 0,
                   _func, NULL, "periodic");
 
     return 0;