diff --git a/src/drivers/stm32/drv_io_timer.c b/src/drivers/stm32/drv_io_timer.c
index 8edea0820c..19c955009a 100644
--- a/src/drivers/stm32/drv_io_timer.c
+++ b/src/drivers/stm32/drv_io_timer.c
@@ -412,12 +412,8 @@ void io_timer_force_update()
 {
 	for (int i = 0; i < MAX_IO_TIMERS; i++) {
 		if (timer_freq[i] == 8) {
-			int rv = io_timer_validate_channel_index(i);
-
-			if (rv == 0) {
-				// force update of channel compare register
-				rEGR(i) |= GTIM_EGR_UG;
-			}
+			// force update of channel compare register
+			rEGR(i) |= GTIM_EGR_UG;
 		}
 	}
 }