mark alarm.wake_alarm during gc sweep

1 files changed, 4 insertions, 0 deletions

diff --git a/main.c b/main.c
index d940f93d1..27ed6ff11 100755
--- a/main.c
+++ b/main.c
@@ -613,6 +613,10 @@ void gc_collect(void) {
 
     background_callback_gc_collect();
 
+    #if CIRCUITPY_ALARM
+    common_hal_alarm_gc_collect();
+    #endif
+
     #if CIRCUITPY_DISPLAYIO
     displayio_gc_collect();
     #endif