diff --git a/arch/nios2/core/timing.c b/arch/nios2/core/timing.c
index bae3320aaa5..dab36a31a3e 100644
--- a/arch/nios2/core/timing.c
+++ b/arch/nios2/core/timing.c
@@ -61,5 +61,5 @@ uint64_t arch_timing_cycles_to_ns_avg(uint64_t cycles, uint32_t count)
 
 uint32_t arch_timing_freq_get_mhz(void)
 {
-	return (uint32_t)(arch_timing_freq_get() / 1000000);
+	return (uint32_t)(arch_timing_freq_get() / 1000000U);
 }