diff --git a/cpu/stm32/kconfigs/Kconfig.clk b/cpu/stm32/kconfigs/Kconfig.clk
index 7ddc851b91..758d4827a4 100644
--- a/cpu/stm32/kconfigs/Kconfig.clk
+++ b/cpu/stm32/kconfigs/Kconfig.clk
@@ -174,7 +174,7 @@ endif  # CPU_FAM_F2 || CPU_FAM_F4 || CPU_FAM_F7 || CPU_FAM_G0 || CPU_FAM_G4 || C
 if CPU_FAM_F0 || CPU_FAM_F1 || CPU_FAM_F3
 config CLOCK_PLL_PREDIV
     int "PLLIN division factor" if CUSTOM_PLL_PARAMS && !CPU_LINE_STM32F031X6 && !CPU_LINE_STM32F042X6 && !CPU_LINE_STM32F303X8
-    default 2 if CPU_LINE_STM32F031X6 || CPU_LINE_STM32F042X6 || CPU_LINE_STM32F303X8
+    default 2 if CPU_LINE_STM32F031X6 || CPU_LINE_STM32F042X6 || CPU_LINE_STM32F303X8 || CPU_LINE_STM32F303XC
     default 1
     range 1 16