diff --git a/lib/infrared/worker/infrared_worker.c b/lib/infrared/worker/infrared_worker.c
index a867542e013..89f351eb92d 100644
--- a/lib/infrared/worker/infrared_worker.c
+++ b/lib/infrared/worker/infrared_worker.c
@@ -612,7 +612,7 @@ void infrared_worker_set_raw_signal(
     furi_check(timings);
     furi_check(timings_cnt > 0);
     furi_check((frequency <= INFRARED_MAX_FREQUENCY) && (frequency >= INFRARED_MIN_FREQUENCY));
-    furi_check((duty_cycle < 1.0f) && (duty_cycle > 0.0f));
+    furi_check((duty_cycle <= 1.0f) && (duty_cycle > 0.0f));
 
     size_t max_copy_num = COUNT_OF(instance->signal.raw.timings) - 1;
     furi_check(timings_cnt <= max_copy_num);