diff --git a/drivers/timer/stm32_lptim_timer.c b/drivers/timer/stm32_lptim_timer.c
index fc99a14bb7d..ed57b4e5def 100644
--- a/drivers/timer/stm32_lptim_timer.c
+++ b/drivers/timer/stm32_lptim_timer.c
@@ -456,15 +456,13 @@ static int sys_clock_driver_init(void)
 #if DT_PROP(DT_NODELABEL(stm32_lp_tick_source), st_timeout)
 	uint32_t timeout = DT_PROP(DT_NODELABEL(stm32_lp_tick_source), st_timeout);
 
-	/*
-	 * Check if prescaler corresponding to st,timeout
-	 * is matching the lptim_clock_presc calculated one from the lptim_clock_freq
-	 * max lptim period is 0xFFFF/(lptim_clock_freq/lptim_clock_presc)
-	 */
-	if (timeout > (lptim_clock_presc / lptim_clock_freq) * 0xFFFF) {
+	if (timeout > (lptim_clock_presc * 0xFFFF) / lptim_clock_freq) {
+		__ASSERT(0,
+			"st,timeout can't be higher than range defined by LPTIM presc and freq");
 		return -EIO;
 	}
 
+
 	/*
 	 * Define the lptim_time_base that should be set to expire at "timeout" seconds
 	 * running counter at (lptim_clock_freq divided by lptim_clock_presc) Hz