diff --git a/source/Service_Libs/fhss/fhss_beacon_tasklet.c b/source/Service_Libs/fhss/fhss_beacon_tasklet.c
index 158782ec354..47cc5048ee4 100644
--- a/source/Service_Libs/fhss/fhss_beacon_tasklet.c
+++ b/source/Service_Libs/fhss/fhss_beacon_tasklet.c
@@ -26,6 +26,7 @@
 #include "fhss.h"
 #include "fhss_beacon.h"
 #include "fhss_statistics.h"
+#include "platform/arm_hal_interrupt.h"
 
 #include <string.h> // memset
 
@@ -128,8 +129,9 @@ static void fhss_beacon_tasklet_func(arm_event_s* event)
 void fhss_beacon_build(fhss_structure_t *fhss_structure, uint8_t* dest)
 {
     fhss_synchronization_beacon_payload_s temp_payload;
-
+    platform_enter_critical();
     fhss_beacon_update_payload(fhss_structure, &temp_payload);
+    platform_exit_critical();
     fhss_beacon_encode_raw(dest, &temp_payload);
 }