diff --git a/drivers/CoreDAC/tests/CoreSTM32HalBasicTimer_test.cpp b/drivers/CoreDAC/tests/CoreSTM32HalBasicTimer_test.cpp
index ae3cb1288f..5a4a43dc56 100644
--- a/drivers/CoreDAC/tests/CoreSTM32HalBasicTimer_test.cpp
+++ b/drivers/CoreDAC/tests/CoreSTM32HalBasicTimer_test.cpp
@@ -124,9 +124,9 @@ TEST_F(CoreSTM32HalBasicTimerTest, initializeConfig)
 {
 	auto timer_handle = basic_timer.getHandle();
 
-	auto CK_INT				 = 54'000'000;
-	auto default_sample_rate = 44'100;
-	auto divider			 = CK_INT / default_sample_rate;
+	auto CK_INT				 = float(108'000'000.0);
+	auto default_sample_rate = float(44'100.0);
+	auto divider			 = std::round(CK_INT / default_sample_rate);
 
 	// The prescaler can divide the counter clock frequency by any factor between 1 and 65536, see 28.3.1 of RM
 	auto prescaler = timer_handle.Init.Prescaler;
@@ -139,7 +139,7 @@ TEST_F(CoreSTM32HalBasicTimerTest, initializeConfig)
 
 	// To fit required frequency (default sample rate), multiplying prescaler and auto-reload value must give
 	// approximately the divider
-	EXPECT_NEAR(prescaler * auto_reload_value, divider, 50);
+	EXPECT_NEAR(prescaler * auto_reload_value, divider, 1);
 
 	// Disable shadow write
 	EXPECT_EQ(timer_handle.Init.AutoReloadPreload, TIM_AUTORELOAD_PRELOAD_DISABLE);