diff --git a/src/hasp/hasp.h b/src/hasp/hasp.h
index 90f3cb75..c230115e 100644
--- a/src/hasp/hasp.h
+++ b/src/hasp/hasp.h
@@ -63,7 +63,7 @@ bool haspSetConfig(const JsonObject& settings);
 
 lv_font_t* hasp_get_font(uint8_t fontid);
 
-HASP_ATTRIBUTE_FAST_MEM bool hasp_update_sleep_state();
+HASP_ATTRIBUTE_FAST_MEM void hasp_update_sleep_state();
 void hasp_get_sleep_state(char* payload);
 void hasp_set_sleep_state(uint8_t state);
 void hasp_get_sleep_time(uint16_t& short_time, uint16_t& long_time);