1 files changed, 6 insertions, 0 deletions
diff --git a/py/modthread.c b/py/modthread.c
index cb071d0f86..61ada50351 100644
--- a/py/modthread.c
+++ b/py/modthread.c
@@ -165,6 +165,12 @@ STATIC void *thread_entry(void *args_in) {
     mp_stack_set_top(&ts + 1); // need to include ts in root-pointer scan
     mp_stack_set_limit(args->stack_size);
 
+    #if MICROPY_ENABLE_PYSTACK
+    // TODO threading and pystack is not fully supported, for now just make a small stack
+    mp_obj_t mini_pystack[128];
+    mp_pystack_init(mini_pystack, &mini_pystack[128]);
+    #endif
+
     // set locals and globals from the calling context
     mp_locals_set(args->dict_locals);
     mp_globals_set(args->dict_globals);