diff --git a/components/esp32/crosscore_int.c b/components/esp32/crosscore_int.c
index 1e131eeef..f75f0eba7 100644
--- a/components/esp32/crosscore_int.c
+++ b/components/esp32/crosscore_int.c
@@ -82,7 +82,7 @@ void esp_crosscore_int_init() {
     assert(err == ESP_OK);
 }
 
-void esp_crosscore_int_send_yield(int coreId) {
+void IRAM_ATTR esp_crosscore_int_send_yield(int coreId) {
     assert(coreId<portNUM_PROCESSORS);
     //Mark the reason we interrupt the other CPU
     portENTER_CRITICAL(&reasonSpinlock);